To produce a textbook, suppose the publisher spent $ 115, 000 for typesetting and $ 7.50 per book for printing and binding. The total cost to produce and print n n books can be written as C = 115, 000 + 7.5 n. Find the cost to produce one more textbook when you have already produced 10,000 textbooks. If you have already produced 10, 000 textbooks, it'll cost you how much to produce one more.