PLEASE ANSWER ASAP!
Stacy is installing an air conditioner in her attic office. The office is in the shape of a square pyramid with a height of 10 feet. The length and width of the office are each 24 feet. Which is the volume of air in Stacy's office that the air conditioner must cool?
A.960 cubic feet
B.1,056 cubic feet
C.1,920 cubic feet
D.2,880 cubic feet

Girardo is using the model below to solve the equation . girardo uses the following steps: step 1 add 4 negative x-tiles to both sides step 2 add 1 negative unit tile to both sides step 3 the solution is which step could be adjusted so that gerardo's final step results in a positive x-value? in step 1, he should have added 4 positive x-tiles to both sides. in step 1, he should have added 3 negative x-tiles to both sides. in step 2, he should have added 4 negative unit tiles to both sides. in step 2, he should have added 1 positive unit tile to both sides.

The pyramid below was dissected by a horizontal plane which shape describes the pyramid horizontal cross section

Which diagram best shows how fraction bars can be used to evaluate 1/2 divided by 1/4?