68. Find the volume of this square-based pyramid. (meters)

A. 810 m2
B. 270 m2
C. 405 m3
D. 180 m3
E. 60 m

What is the answer to this question? i'm a bit stumped. also how do i do it? 5(x - 4) = 2(x + 5)

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. release your mouse button when the item is place. if you change your mind, drag the item to the trashcan. click the trashcan to clear all your answers. find the lateral area for the prism. l.a. = 0123456789

Cos^2x+cos^2(120°+x)+cos^2(120°-x)i need this asap. pls me