1/15 + 1/5= 2/3 or 9/10

Write the equation for the parabola that has x− intercepts (−2,0) and (4,0) and y− intercept (0,4).

Apyramid fits exactly inside a cube. the cube and the pyramid share the same square base, and they are both exactly the same height. the volume of the cube is 66 cubic inches. what is the volume of the pyramid? explain your answer. answer asap

What’s the answer? and how do i solve it ?