Come up with a question and reasoning that would justify this answer: 5
Question and rationale: The question is: At its current growth rate, a certain plant will be 80 feet tall after a year. If the plant grows at the same rate every month and is currently 20 feet tall, what's its monthly growth rate in feet?
Step-by-step reasoning process: If the plant is currently 20 feet tall, it will have grown by 80 - 20 = 60 feet after a year. Since a year has 12 months, and the tree grows at the same rate every month, the tree grows at 60 / 12 = 5 feet every month.

Come up with a question and reasoning that would justify this answer: 65
Question and rationale: The question is: Zack's number of marbles can be divided equally among three people, leaving Zack with 5. If Zack decided to give his three friends 20 marbles each and kept five, how many marbles did he initially have?
Step-by-step reasoning process: If Zack decided to give his three friends 20 marbles each, he gave them 3 * 20 = 60 marbles. If he kept five, Zack initially had 60 + 5 = 65 marbles.

Come up with a question and reasoning that would justify this answer: 2
Question and rationale: The question is: It takes 3 ounces of wax to detail Kellan’s car and 4 ounces to detail his SUV. He bought an 11-ounce bottle of vehicle wax, but spilled 2 ounces before using it. How many ounces does he have left after waxing his car and SUV?
Step-by-step reasoning process: Kellan used 3 + 4 = 7 ounces of wax for his car and SUV. Since he spilled 2 ounces, he has 11 - 2 - 7 = 2 ounces of wax left.

Come up with a question and reasoning that would justify this answer: 3
Question and rationale:

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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The question is: Tony has $87. He needs to buy some cheese, which costs $7 a pound and a pound of beef that costs $5 a pound. After buying the beef and his cheese, he has $61 left. How many pounds of cheese did he buy?
Step-by-step reasoning process: He spent $26 because 87 - 61 = 26. He spend $21 on cheese because 26 - 5 = 21. He bought 3 pounds of cheese because 21 / 7 = 3.