[Question]: For Halloween, Taquon, Mack and Jafari put their candy together and they had 418 pieces of candy. If Taquon and Mack each had 171 pieces of candy, how many pieces of candy did Jafari start with?
[Answer]: Taquon + Mack = 2 * 171 = 342 pieces. 418 - 342 = 76 pieces. Jafari started with 76 pieces of candy.
So the answer is 76.

[Question]: Olivia earns $9 per hour. She worked 4 hours on Monday, 3 hours on Wednesday and 6 hours on Friday. How much money did Olivia make this week?
[Answer]: Olivia made $9 * 4 hours = $36 on Monday. Olivia made $9 * 3 = $27 on Wednesday. Olivia made $9 * 6 hours = $54 on Friday. For the week Olivia made $36 + $27 + $54 = $117.
So the answer is 117.

[Question]: An apple tree can fill 20 baskets. Each basket can be filled with 15 apples. How many apples can you get from 10 trees?
[Answer]:
You can get 20 x 15 = 300 apples per tree. So a total of 300 x 10 = 3000 apples can be gotten from 10 trees.
So the answer is 3000.