Q: Weng earns $12 an hour for babysitting. Yesterday, she just did 50 minutes of babysitting. How much did she earn?
A: Weng earns 12 / 60 = $0.2 per minute. Working 50 minutes, she earned 0.2 x 50 = $10. The answer is 10.

Q: Kylie has 5 daisies. Her sister gave her another 9 daisies. Kylie then gave half her daisies to her mother. How many daisies does Kylie have left?
A: Kylie had 5 + 9 = 14 daisies. She has 14 / 2 = 7 daisies left. The answer is 7.

Q: A cobbler can mend 3 pairs of shoes in an hour. From Monday to Thursday, the cobbler works for 8 hours each day, and on Friday, he only works from 8am to 11am. How many pairs of shoes can the cobbler mend in a week?
A:

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.
user
From Monday to Thursday, the cobbler can mend 3 x 8 = 24 pairs of shoes a day. From Monday to Thursday, he can mend 24 x 4 = 96 pairs of shoes. On Friday, he works for 11 - 8 = 3 hours. On Friday, he can mend 3 x 3 = 9 pairs of shoes. In a week, he can mend 96 + 9 = 105 pairs of shoes. The answer is 105.