What 2 numbers have the absolute given value of 4

Match each expression with its simplified form.

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 statement accurately explains whether a reflection over the x-axis and a 180° rotation would map figure acb onto itself?