Which expression is equivalent to (16 - 10) + (-2 + 19)

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

Which of the following quartic functions has x = –1 and x = –2 as its only two real zeroes?

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?