To produce x units of a religious medal costs C(x) 15x + 22. The revenue is R(x) 26x. Both cost and revenue are in dollars. a. Find the break-even quantity. b. Find the profit from 390 units. c. Find the number of units that must be produced for a profit of $110. units is the break-even quantity. (Type an integer.) a. b. The profit for 390 units is $ units make a profit of $11 0. (Type an integer.) C. ei