If a tree falls in a forest and no one is there to hear it does it still make a sound

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 graph represents an even function?

Type the correct answer in each box. use numerals instead of words. if necessary, use / for the fraction bar. consider the given table.