Sorry, but I need help, been on this for hours but can't figure it out

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.

How do businesses a country's economy? a. by investing in goods and services b. by increasing the unemployment rate c. by making profits

You wanted to draw an enlargement of design that printed on a card that is 4 in by 5