If EAC = 4x and EDC = 2x + 18, find the value of x. a. 34
b. 68
c. 136
d. 292

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

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36

Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?