Find the total area of this figure

The parabola y = x² - 4 opens: a.) up b.) down c.) right d.) left

For which pair of functions is (gof)(a)=|a|-2?

Your friend uses c=50p to find the total cost, c, for the people, p, entering a local amusement park what is the unit rate and what does it represent in the context of the situation?