Square root of 7 times square root of 35

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

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)

If square root x = -7, then x= -49 true or false