Free points for everyone goodnight I got a 100 on my math test because of this website so I’m sharing some love!

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

The marriott family bought a new apartment three years ago for $65,000. the apartment is now worth $86,515. assuming a steady rate of growth, what was the yearly rate of appreciation? what is the percent of the yearly rate of appreciation?

Estimate the area under the curve f(x) = 16 - x^2 from x = 0 to x = 3 by using three inscribed (under the curve) rectangles. answer to the nearest integer.