Do you mean 15 feet across in diameter? would be pi x r^2
so 3.14 x 7.5^2 = 176.625 feet^2
Distance from Supermarket to Bank = 3 miles.
Distance from the Bank to the library = 4 miles.
Distance from the library back to supermarket =
![\sqrt{3^2 + 4^2} = 5](https://tex.z-dn.net/?f=%20%5Csqrt%7B3%5E2%20%2B%204%5E2%7D%20%20%3D%205)
Total Distance = 3 + 4 + 5 = 12 miles.
Answer: 12 miles
75.2 is already rounded to the nearest tenth, if you meant tens it's 80