the function y=f(x) is graphed below what is the average rate of change of the function f(x) on the interval 1

Chose the graph below that represents the following system of inequality’s

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.

Ineed i been stuck on this question since yesterday