My mom built a new sandbox that is 3m long, 2m wide, and 1m high for my sister and me. Sand for the sandbox costs $4.50 per cubic meter. How much will it cost to completely fill the sandbox with sand?

Answer: it will cost $27 to completely fill the sandbox with sand.

Step-by-step explanation:

The sandbox is rectangular in shape. The formula for determining the volume of a rectangular box or cuboid is expressed as

Volume = length * width * height

The new sandbox that was is 3m long, 2m wide, and 1m high. This means that the volume of the new sandbox is

3 * 2 * 1 = 6m³

Sand for the sandbox costs $4.50 per cubic meter. It means that the cost of sand that would completely fill the sandbox is

6 * 4.5 = $27

The answer is going to be $27.00