Q: Mrs. Watson is grading 120 final exams from her American History class. On Monday, she grades 60% of the exams. On Tuesday, she grades 75% of the remaining exams. On Wednesday, how many more exams does she need to grade?
A: On Monday, Mrs. Watson grades 120 x 60% = 72 final exams. At the end of Monday, she has 120 - 72 = 48 exams left to grade. On Tuesday, she grades 48 x 75% = 36 final exams. On Wednesday, she has 48 - 36 = 12 exams left to grade. The answer is 12.

Q: A group of 4 fruit baskets contains 9 apples, 15 oranges, and 14 bananas in the first three baskets and 2 less of each fruit in the fourth basket. How many fruits are there?
A: For the first three baskets, the number of apples and oranges in one basket is 9 + 15 = 24. In total, together with bananas, the number of fruits in one basket is 24 + 14 = 38 for the first three baskets. Since there are three baskets each having 38 fruits, there are 3 * 38 = 114 fruits in the first three baskets. The number of apples in the fourth basket is 9 - 2 = 7. There are also 15 - 2 = 13 oranges in the fourth basket. The combined number of oranges and apples in the fourth basket is 13 + 7 = 20. The fourth basket also contains 14 - 2 = 12 bananas. In total, the fourth basket has 20 + 12 = 32 fruits. The four baskets together have 32 + 114 = 146 fruits. The answer is 146.

Q: Benny is baking pies for a bake sale. He plans to make ten pumpkin pies, which cost $3 each to make, and twelve cherry pies, which cost $5 each to make. If he wants to make a profit of $20 selling all the pies, how much does he have to charge for each pie if both kinds sell at the same price?
A:
Benny will spend 3 * 10 = $30 to make the pumpkin pies. He will spend 5 * 12 = $60 to make the cherry pies. He wants to make a profit of $20, so he has to earn 30 + 60 + 20 = $110 selling all the pies. He is making 22 pies, so he needs to charge 110 / 22 = $5 per pie. The answer is 5.