(Please help! Thanks!)
A manufacturing company is producing dinner plates with a radius of 6 inches. They plan to put a gold edge on each plate.

a. Determine how much gold edging they will need for each plate.

b. How much gold edging will they need for a box of 24 plates?

C. In total, how much would it cost the company to put the gold edging around the plates if it costs $3.25 per 100 inches of gold edging?