Can someone explain to me how to do this exercise?
given the function f(x) = 3x-2x^2, evaluate and simplify.
1. f(f(-1))
2. f(-1+a)-f(-1)

(98 points) i need with 5 questions. answer definitions are welcomed, but not necessary.

Which of these choices show a pair of equivalent expressions?

What is the measure of angle z in this figure? enter your answer in the box. z = ° two intersection lines. all four angles formed by the intersecting lines are labeled. clockwise, the angles are labeled 43 degrees, x degrees, y degrees, and z degrees.