Question

What equation represents the temperature

Answer 1

B is your answer (:
hope it helps

Answer 2

answer is A.
t = -4h + 21

when h = 0, t = 21
every next hour, temp. drop 4 degrees

h = 1, t = -4(1) + 21 = 17

h = 2, t = -4(2) + 21 = 13
and so on...