After doubling the balloon volume four times, this group decides to try for the record distance and double the balloon volume one more time. They predict that doubling the balloon size once more will result in the car traveling . A) 80 centimeters B) 160 centimeters C) 320 centimeters D) 400 centimeters

Let r = 3. what is the value of r + 58?

Which expression is equivalent to 2x^2+7x+4?

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