Aschool is having a canned food drive. each class is challenged to collect 160 cans. if there are c classes in the school, which equation could be used to find the total number of cans, t, the school will collect if each class meets the challenge? a. b. c. d.

Abiologist is recording the loss of fish in a pond. he notes the number of fish, f, in the pond on june 1. on july 1 there were 63 fish in the pond, which is 52 fewer fish than were in the pond on june 1. which equation represents this situation? a. f – 52 = 63 b. f – 63 = 52 c. 63 – f = 52 d. f – 63 = –52