Question: Bryan's score on a math exam is 20. Jen scored 10 more than Bryan while Sammy scored 2 fewer than Jen. If the math exam has 35 points in all, how many mistakes did Sammy make?
Answer: Jen scored 20 + 10 = 30 on the exam. Sammy scored two less, so his score was30 - 2 = 28. Thus, Sammy made 35 - 28 = 7 mistakes. The answer is 7.
[Question]Archie received his medical receipt from his doctor, and he needs to take antibiotics three times a day. If antibiotic costs $3 each and he needs to take it for a week, how much money does he need to buy the antibiotics?
[Answer]Archie needs $3 x 3 = $9 per day to buy 3 antibiotics. Therefore Archie needs $9 x 7 = $63 to buy antibiotics that will last for a week. The answer is 63.
Q: To earn money for her new computer, Tina sells handmade postcards. In a day, she can make 30 such postcards. For each postcard sold, Tina gets $5. How much money did Tina earn if she managed to sell all the postcards she made every day for 6 days?
A: Tina made postcards for 6 days, so she has made 6 days * 30 postcards / day = 180 postcards. For every postcard, Tina gets $5, so if she sold every card, she got 180 postcards * $5 / postcard = $900. The answer is 900.
Question: The lifespan of a hamster is 6 years less than that of a bat. The lifespan of a frog is 4 times that of a hamster. Altogether, the lifespan of the animals is 30 years. What is the lifespan of the bat?
Answer: Let’s set up an equation by calling the lifespan of a bat x, and therefore the lifespan of the hamster x – 6, and the lifespan of the frog 4 (x – 6) which add together to equal 30, like this: x + x – 6 + 4 (x – 6) = 30. That gives us 6x – 30 = 30 and we should add 30 to each side to try to isolate the x. Now we have 6x = 60, which we will divide by 6, 6x / 6 = 60 / 6. This gives us x = 10. The bat has a lifespan of 10 years. The answer is 10.
[Question]Ines had $20 in her purse. She bought 3 pounds of peaches, which are $2 per pound at the local farmers’ market. How much did she have left?
[Answer]Ines bought 3 pounds of peaches for 3 peaches * $2 / peach = $6. Ines has $20 - $6 = $14 left. The answer is 14.
[Question]If 12 bags of oranges weigh 24 pounds, how much do 8 bags weigh?
[Answer]

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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Each bag of oranges weighs 24 pounds / 12 = 2 pounds. 8 bags of oranges would weigh 8 * 2 pounds = 16 pounds. The answer is 16.