Given:
- The dimensions of the proposed pool are: Length = 60 feet; Width = 30 feet; Depth = 10 feet
- Each cubic foot of space can hold 7.5 gallons of water
To calculate the volume of the pool in cubic feet:
Length x Width x Depth = Volume
60 feet x 30 feet x 10 feet = 18,000 cubic feet
Since each cubic foot can hold 7.5 gallons, to find the total gallons of water the pool can hold we multiply:
18,000 cubic feet x 7.5 gallons/cubic foot = 135,000 gallons
So, the total number of gallons of water the proposed pool can hold is 135,000 gallons.