The chances of making the junior high basketball team start at 10% if you're 66 inches and increase 10% for every additional inch of height. Devin starts out as 65 inches tall, then grows 3 inches. What are his chances of making the basketball team?
Let's think: First find Devin's new height by adding his growth to the original height: 65 inches + 3 inches = 68 inches. Then subtract 66 inches from Devin's height to find how many extra inches of height he has: 68 inches - 66 inches = 2 inches. Then multiply the number of extra inches by the percentage increase per inch to find the total percentage increase in his chances: 2 inches * 10% / inch = 20%. Then add the percentage increase to the base percentage to find Devin's overall chance of making the basketball team: 10% + 20% = 30%.. The answer is: 30.

Lisa and Carly go shopping together. Lisa spends $40 on t-shirts then spends half of this amount on jeans and twice this amount on coats. Carly spends only a quarter as much as Lisa on t-shirts but spends 3 times as much on jeans and a quarter of the amount Lisa spent on coats. In dollars, how much did Lisa and Carly spend in total?
Let's think: Lisa spends $40 on t - shirts / 2 = $20 on jeans. She also spends $40 on t - shirts * 2 = $80 on coats. So Lisa has spent a total of 40 + 20 + 80 = $140. Carly spends $40 / 4 = $10 on t - shirts. She also spends $20 per pair of jeans * 3 = $60 on jeans. She then also spends $80 Lisa's cost for coats / 4 = $20 on coats. So Carly has spent a total of 10 + 60 + 20 = $90. Lisa and Carly have therefore spent a total of 140 + 90 = $230.. The answer is: 230.

Juanita enters a drumming contest. It costs $10 to enter. She has 2 minutes to hit as many drums as she can. If she hits 200 drums, she can start to make money, equal to 2.5 cents for every drum hit. How many drums does she hit if she lost $7.5 for joining the contest?
Let's think: She made $2.5 from hitting drums because 10 - 7.5 = 2.5. She hit 200 drums to start making money. She hit 100 drums in order to make the $2.5 because 2.5 / .025 = 100. She hit 300 drums in total because 100 + 200 = 300.. The answer is: 300.

A crayon box has 24 crayons total. 8 crayons are red, 6 crayons are blue, there are 2/3 the number of green crayons as blue crayons, and the rest of the crayons are pink. How many crayons are pink?
Let's think:
There are 2 / 3 green crayons * 6 blue crayons = 4 green crayons. The pink crayons left in the box are 24 crayons total - 8 red - 6 blue - 4 green = 6 pink crayons.. The answer is: 6.