A prism has a volume of 512 cubic feet. the width is 8 feet. Could this prism be a cube why or why not

Can someone tell me if this is perpendicular? !

Lesson 9-3 for items 8-10, a square is drawn in the coordinate plane, with vertices as shown in the diagram. then the square is reflected across the x-axis. -2 4 8. the function that describes the reflection is (x, y) - a. (x, y-3). b. (x, y-6). c. (-x, y). d. (x,- y).

If bill bought a home for $210,000 and he sold it a year later for $120,000 his percentage of loss is