Each side of a sandbox is 5 feet long. It will cost $3.00 per square foot to replace the sand in the sandbox. What would be the total cost to replace the sand?

The area of the sandbox is 5 feet x 5 feet = 25 square feet.

To replace the sand, we need to calculate the total square footage:

Total square footage = 25 square feet x 4 sides = 100 square feet

The cost per square foot is $3.00, so to find the total cost:

Total cost = 100 square feet x $3.00/square foot

Total cost = $300.00

Therefore, the total cost to replace the sand in the sandbox would be $300.00.