Answer to Problem # 13:
(3 cents x 1000 flyers ) + ( 2 cents x (3,500 - 1,000) flyers) = flyer flyer $ 30.00 + (2 cents x 2,500 flyers) = $30.00 + $50.00 = flyer $80.00 (ANSWER)
Note: The 1 ½ cents per flyer (for the next 6,000) is not used since
the total copies did not exceed 4,000.