Im confused on this question khan academy

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.

What is the range for 31,39,29,34,37,24,36,33,34,28

Awasher and a dryer cost $701 combined. the washer costs $51 more than the dryer. what is the cost of the dryer?