Question: Maddy is in college for 8 semesters. She needs 120 credits to graduate. If each class is 3 credits, how many classes does she need to take per semester?
Answer with step-by-step thinking: 120 credits / 3 credits is 40. 40 credits / 8 semester = 5 classes per semester. Maddy needs to take 5 classes per semester.
So the answer is 5.

Question: Santino has 2 papaya trees and 3 mango trees. If each papaya tree produces 10 papayas and each mango tree produces 20 mangos, how many fruits does Santino have in total?
Answer with step-by-step thinking: Santino has 2 * 10 = 20 papaya fruits. Santino has 3 * 20 = 60 mango fruits. In total, Santino has 20 + 60 = 80 fruits.
So the answer is 80.

Question: Jim collects model cars, and he has 301 models total. Jim has 4 times as many Buicks as Fords, and 3 more than twice the number of Fords than Chevys. How many Buicks does Jim have?
Answer with step-by-step thinking:
Let x represent the number of Chevys. Fords:3 + 2x. Buicks:4(3 + 2x) = 12 + 8x. Total:x + 3 + 2x + 12 + 8x = 301. 11x + 15 = 301. 11x = 286. x = 26. Buicks:12 + 8(26) = 220.
So the answer is 220.