Q: The weights of Christine's two cats are 7 and 10 pounds. What is her dog's weight if its weight is twice the sum of her two cats' weights?
A: 34
Step-by-step reasoning process: The sum of the weights of Christine's two cats is 7 + 10 = 17 pounds. Christine's dog weighs 17 x 2 = 34 pounds.

Q: A dietitian ate three-fourths of her lunch during her lunch break. If the total amount of food she had prepared for lunch had 40 calories, and the recommended calorie intake by the FDA is 25, how many more calories than the recommended amount did she eat?
A: 5
Step-by-step reasoning process: A dietitian ate three - fourths of her lunch during her lunch break, containing 3 / 4 * 40 = 30 calories. If the recommended calorie intake by the FDA is 25, the dietitian ate 30 - 25 = 5 more calories than the recommended amount.

Q: John has a very inefficient toilet that uses 5 gallons of water per flush and his household flushed 15 times per day. He replaced it with a toilet that uses 80% less water per flush. How much water did John save in June?
A: 1800
Step-by-step reasoning process: He used to use 5 * 15 = 75 gallons of water per day. This means he used 75 * 30 = 2250 gallons a month. His new toilet uses 5 * .8 = 4 gallons less water per flush. So, it only uses 5 - 4 = 1 gallon per flush. That means he uses 1 * 15 = 15 gallons per day. All in all, it accounts for a total usage of 15 * 30 = 450 gallons. So, he saved 2250 - 450 = 1800 gallons per month.

Q: While Paul watches movies, he runs on his treadmill. He can run a mile in 12 minutes. He watches two movies, which are an average length of 1.5 hours. How many miles does he run?
A: 15
Step-by-step reasoning process: He runs for 3 hours because 2 x 1.5 = 3. He runs for 180 minutes because 3 x 60 = 180. He runs 15 miles because 180 / 12 = 15.