In one sentence, describe what the following article is about: Measure out 2 tablespoons of baking soda and add these to the cup in your volcano. Make sure that the inside of the volcano is completely dry when you do this. Any moisture may cause the baking soda to fizz before you want it to. Baking soda is a common household item, so you probably have some. Ask a parent or guardian before you use the baking soda.
Summary: Put 2 tablespoons of baking soda into the volcano.

This isn't absolutely necessary, but it's useful, as it allows you to visualize your given data as a range of values over a length of time. For our purposes, simple tables will usually suffice - simply use two columns, listing your values for time in the left column and the corresponding values for your quantity in the right column, as above. Your data should have regular values for time, each with a corresponding value for your quantity. The units for these time values aren't important - this method will work for data collected over spans of minutes, seconds, days, etc. In our case, our data is expressed in terms of years. Insert your past and present values into a new formula: (present) = (past) * (1 + growth rate)n where n = number of time periods. This method will give us an average growth rate for each time interval given past and present figures and assuming a steady rate of growth. Because our example uses years, this means we'll get an average annual growth rate. Manipulate the equation via algebra to get "growth rate" by itself on one side of the equal sign. To do this, divide both sides by the past figure, take the exponent to 1/n, then subtract 1. If your algebra works out, you should get: growth rate = (present / past)1/n - 1 . Insert values for your past and present values, as well as a value for n (which will be the number of time intervals in your data, including your past and present values.) Solve according to basic principles of algebra, order of operations, etc. In our example, we'll use our present figure of 310 and our past figure of 205, along with a time period of 9 years for n. In this case, the average annual growth rate is simply (310/205)1/9 - 1 = .0422 0.0422 x 100 = 4.22%. On average, our value grew by 4.22 percent each year.
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One-sentence summary -- Organize your data in a table. Use a growth rate equation which takes into account the number of time intervals in your data. Isolate the "growth rate" variable. Solve for your growth rate.

Q: Keep the manufacturer's instructions that are underneath the inhaler. Read the instructions before you take the medication for the first time. Once you hear the click, you should see the counter on the front of the inhaler count down by 1. This shows you how many doses you have left in the inhaler. Avoid sliding the cover open and shut without using the inhaler. Doing so will waste doses of medication. Hold the Breo Ellipta inhaler away from your face while you exhale. Then bring the inhaler up to your mouth so the mouthpiece is between your lips. Your lips should tightly curl around the mouthpiece. Avoid blocking the mouthpiece with your teeth or tongue. Keep the mouthpiece between your lips and take a long steady breath. Don't breathe through your nose or you won't get a dose of the medication. Try to take your dose of Breo Ellipta at the same time every day. Try setting a timer or making it part of your daily routine along with another task such as brushing your teeth. Ensure you don't block the air vents with your fingers. If you can't hold your breath comfortably for that long, you can breathe out after 1 to 2 seconds. Release your breath slowly. If your doctor has prescribed more than 1 dose of Breo Ellipta, wait 30 seconds before inhaling the second dose. Rinse your mouth afterward to prevent oral thrush. Slide the cover over the mouthpiece and place the inhaler in a dry place away from heat and light. Try to keep it at room temperature, between 68F (20C) and 77F (25C). While you don't have to clean the inhaler, you can wipe the mouthpiece dry with a piece of tissue. Throw away the inhaler once the counter on the front shows 0 or if the inhaler has been open for 6 weeks.
A: Peel back the foil and remove the inhaler. Slide the cover down until you hear a click. Exhale before you bring the mouthpiece to your mouth. Take a long deep breath through your mouth. Remove the inhaler and hold your breath for 3 to 4 seconds. Cover the mouthpiece and store the inhaler.

Problem: Article: Use a ruler to measure the length and width of your phone. Add 1 inch (2.5 centimeters) to each measurement. Cut two strips of duct tape based on your length measurement. Stick them down on a cutting mat, overlapping the sides until you get your width measurement. Flip the sheet over, and cover it with two more strips of duct tape. Repeat this step for the other sheet. Use a craft blade to cut off any excess duct tape. You will need two strips that match the length of your sheet, and two strips that match the width. Slice each strip in half lengthwise. You will have a total of eight strips when you are done. You can use the same color as your case, or a coordinating one. Place one of the shorter strips over one of the narrow ends of your first duct tape sheet. Make sure that half of it is sticking out over the edge of the sheet. Flip the sheet over, and stick the other half of the strip down. Do this for the remaining edges on both sheets. This will hide the raw edges of the sheet as well as reinforce it.
Summary:
Measure your phone, then add 1 inch (2.5 centimeters) to each side. Make two duct tape sheets based on those measurements. Cut four strips of duct tape for the trim. Fold the trim strips over the edges of each duct tape sheet.