please I need help revising maths I struggle maths u don't know want to do or how I should revise it pls help me mathematicians

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

Select the graph of the solution. click until the correct graph appears. |x| = 3

Acd that is originally priced at $15.85 red-tagged for the sale. what is the sale price of the cd