Acontractor is tiling the bottom of a round fish pond with 1-inch square tiles that cost $0.04 each. the fishpond has a diameter of 120 inches. how much will he spend on tiles?

To find out how much the contractor will spend on tiles, you will need to find the area of the circular space.

Use the formula for finding area of a circle.

A = pi x r^2
3.14 x 60^2
A= 11,304 in.².

Multiply this by $0.04 per square inch.

11304 x 0.04 = $452.16

The cost is $452.16.