I need help and follow me on IG Jorge. frizzy

Acircular city park has a sidewalk directly through the middle that is 111 - feet long. if each bag of fertilizer covers 50 square feet, then determine how many bags of fertilizers the parks and recreation department needs to use to cover the circular park. ignore all the sidewalks around and through the park.

Which function has the domain x> -11

Y+ 2/y is it a polynomial in one variable or not? and if so, why?