A museum groundskeeper is creating a semicircular statuary garden with a diameter of 36 feet. There will be a fence around the garden. The fencing costs $7.50 per linear foot. About how much will the fencing cost altogether? Round to the nearest hundredth. Use 3.14 for π.

First, we need the circumference, using dπ. That means the total circumference is 36π, so the semi-circle's circumference is 18π. Then, we add the cross-section, meaning we add 36.

So, the perimeter is 18π + 36. Substituting π, we get 56.52 + 36 = 92.52.

Then we multiply by $7.50 giving us $693.90.