Which equation can be used to find 40 percent of 252

7x+8y=-18, 4x-9y=-3 solve the system of equations

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

If the dimensions of a rectangular prism are 5 ft x 3.5 ft x 2 ſt, what is the surface area?