Simplify the rational expression: x+1/x² +7x+6

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.

Can someone explain to me how to do

Jeremy wants to determine the number of solutions for the equation below without actually solving the equation.