Jamie rents a photocopier from a company that charges $20 each month plus $0.02 for each copy. 3a) Write a linear equation for the monthly charge, C dollars, in terms of the number of copies, n.
3b) Calculate the number of copies Jamie was charged for if his monthly bill was $56.

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.