Answer this question:There was some money in the cookie jar. Doris spent $6 from the cookie jar. Martha spent half as much as Doris. If there were $15 left in the cookie jar, how much money, in dollars, was there in the cookie jar at first?
Martha spent 6 / 2 = 3 dollars. Martha and Doris spent 6 + 3 = 9 dollars. There were 15 + 9 = 24 dollars in the cookie jar at first.
The answer is 24.

Answer this question:Marsha works as a delivery driver for Amazon. She has to drive 10 miles to deliver her first package, 28 miles to deliver her second package, and half that long to deliver her third package. If she gets paid $104 for the day, how many dollars does she get paid per mile?
First find how far Marsha drives to deliver the third package: 28 miles / 2 = 14 miles. Then find how many miles she drives total by adding the miles for the three legs of her journey: 14 miles + 28 miles + 10 miles = 52 miles. Then divide her total pay by the number of miles she drives to find her pay per mile: $104 / 52 miles = $2 / mile.
The answer is 2.

Answer this question:Nick is trying to raise money for a charity. He is selling candy bars for $5. He is also selling chocolate oranges for $10. He wants to raise $1000. He only had 20 chocolate oranges that he sold out. How many candy bars does Nick need to sell to reach his goal?
Nick has made 20 * $10 = $200 from the chocolate oranges. This means he needs to raise another $1000 - $200 = $800. He needs to sell a total of $800 / $5 = 160 candy bars to reach his goal.
The answer is 160.

Answer this question:Ruth goes to school 8 hours a day and 5 days a week. She is in math class 25% of this time. How many hours per week does she spend in math class?

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
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She is in school for 40 hours because 5 x 8 = 40. She is in math class for 10 hours a week because 40 x .25 = 10.
The answer is 10.