Find the coordinates of the vertices of each figure after the given transformation. ( Please help I really don't understand what to do here. ) I would really appreciate it :)

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.

Divide the following fractions 3/4 ÷ 2/3 1/2 8/9 9/8 2

Explain how you can use the associative property to evaluate (7x50)x4.