Jamie rents a photocopier from a company that charges $20 each month plus $0.02 for each copy. Write a linear equation for the monthly charge, C dollars, in terms of the number of copies, n.

Suppose that circtes a and b have a central angle measuring 100. additionally, the measure of the sector for circle a is 10 m2 and for circle b is 40 m2 if the radius of circle a is 6 m, what is the radius of circle b?