Elevator 1 is 12 ft above ground level...and elevator 2 is 15 ft below ground level
Answer: t=-5
Step-by-step explanation:
if 10t=-50, you have to solve for the equation. to solve, you have to get the variable by itself. to get the variable by itself, you have to divide both sides by 10. 10t/10=-50/10. t=-5
The formula of a volume of a pyramid:

B-area of a base
h-height

Substitute:
