Can you help me?

Question

A special stainless-steel cone sits on top of a cable television antenna. The cost of the stainless steel is $8.00 per cm3. The cone has a radius of 3 cm and a height of 12 cm. What is the cost of the stainless steel needed to make this solid steel cone? Round to the nearest cent.

Answer 1

Volume of the cone is 1/3*pi*r^2*h = 1/3 * 3.14 * 3^2 * 12 = 113.1

Cost is $ 8 * 113.1 = 904.78