MATH QUESTION on volume and capacity?

Question

A pool has a volume of 45 m3.
The capacity of the pool is 45 000 L

a) what is the volume of water if the pool is 85% filled?
b) what is the cost to fill the pool to 85% capacity, if water costs $2.00/m3?

show your work and how you got the answer.

Answer 1

.85*45 = 38.25 m^3 = volume of water at 85%capacity

2*38.25 = $76.50 to fill pool to 85% capacity