The City is doing many renovations this year. One of those is to install a new fence around a triangular park in the neighborhood. On a grid, the corners of the park can be mapped on (4,2), (0,2), and (4,-2). Each unit on the coordinate plane represents 6 ft. a) What is the perimeter of the park? Round to nearest tenth of a ft.

b) If each fence panel is 5 ft long and costs $4.50 per panel, how much will the City spend on the new park fence?