Which is an example of continuous?

A) Numbers on the face of a clock

B) Numbers of peers on a jury

C) Time it takes to shower

D) Numbers of characters in a play

Which expression can be used to determine the slope of the line that passes through the points -6, three and one, -9

Let f(x) = 3 − x . find the average rate of change of f(x) from x = a to x = a + h and simplify your answer so that no single factor of h is left in the denominator.

Ijust need these 2 questions answered (the second pic is just confirmation i'm not confident in that answer)