Help me with both of these problems pl

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

Combine the information in the problem and the chart using the average balance method to solve the problem.

Awindow washer cleans 42 windows in 2 hours. at this rate, how many windows did he clean in 180 minutes.