we're learning point-slope but im not sure on how to get a point-slope form equation from a slope and y intercept, pls help :)

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

Find the difference (8ab+a+2) - (3ab+6)

Show your workcan a right triangle have this sides? *how to prove it without using the pythagorean theorema*