??? which ones r congruent or similar

Simplify.7x + 3y - 2 + 6x + 1 + y squared 2 you! ; )

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

Write an equation in point-slope form for the line through the given point that has the given slope (-2,-7); m=-3/2