20 points. what is the measure of angle z in this figure?

To solve the system of equations below, grace isolated the variable y in the first equation and then substituted into the second equation. what was the resulting equation? 3y=12x x^2/4+y^2/9=1

The radius of the earth is two times the radius of the moon. what fraction of the volume of the earth is the volume of the moon?

What is the ordered pair of m’ after point m (5, 6) is rotated 90° counterclockwise?