-4/3 divided by (-12)

Question and answers are in the attached picture. you so much in advance.

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.

Which of the following statements would be sufficient to prove that parallelograms pqrs is a rectangle ?