A town council began the decade by planting cherry trees around the neighborhood to make the neighborhood look more welcoming. By the end of the decade, they have planted twice as many cherry trees as they originally planned and have now realized that falling cherry blossom leaves are causing a problem. Each tree drops 100 leaves each during the fall. If the town council originally intended to plant 7 cherry trees, how many leaves now fall from the trees? Give the rationale and then the answer.
Let's think step by step. The council planted twice their goal so there is a total of 7 planned cherry trees * 2 = 14 cherry trees. So there must be 14 cherry trees * 100 leaves falling from each tree = 1400 leaves.. The answer is: 1400.

Nicole has 4 fish tanks. The first two tanks need 8 gallons of water each and the other two need 2 fewer gallons of water each than the first two tanks. If Nicole needs to change the water of the aquarium every week, how many gallons of water will she need in four weeks? Give the rationale and then the answer.
Let's think step by step. The first two tanks need 8 x 2 = 16 gallons of water. The other two tanks need 8 - 2 = 6 gallons of water each. So, the two other tanks need 6 x 2 = 12 gallons of water. Nicole needs 16 + 12 = 28 gallons of water every week for her four tanks. Therefore, she needs a total of 28 x 4 = 112 gallons of water in four weeks.. The answer is: 112.

A family just bought a newborn puppy that must eat a special type of dog food until it is 1 year old. The puppy needs to eat 2 ounces of this special dog food per day during the first 60 days of its life. After that, it needs to eat 4 ounces per day of the special food until it is old enough to eat regular dog food. If the special dog food is only sold in 5-pound bags, and there are 16 ounces in a pound, how many bags will the family need to buy to feed the puppy until it is old enough to eat regular dog food? Give the rationale and then the answer.
Let's think step by step. The puppy will consume 60 * 2 = 120 ounces of the special dog food in the first 60 days. This leaves 365 - 60 = 305 days where the puppy will consume 4 ounces of food per day, or 305 * 4 = 1220 ounces of the special food. Thus, the puppy requires a total of 120 + 1220 = 1340 ounces of food before it is 1 year old. Each 5 - pound bag contains 5 * 16 = 80 ounces of special dog food. Therefore, the puppy will need to eat 1340 / 80 = 16.75 bags of the special dog food, meaning the family will need to buy 17 bags.. The answer is: 17.