Please help me answer these 2 questions for my math class <3 thanks if you do

In trapezoid bath, ah=19.7 and et=16.1. identify be.

The step function g(x) is defined as shown.what is the range of g(x)? ***answer choices in picture.

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.