Question: Solve each problem. Assume that postage rates are $0.49 for the first ounce, plus $0.21 for each additional ounce, and that each letter carries one

Solve each problem.

Assume that postage rates are $0.49 for the first ounce, plus $0.21 for each additional ounce, and that each letter carries one $0.49 stamp and as many $0.21 stamps as necessary. Graph the function ƒ that models the number of stamps on a letter weighing x ounces over the interval 10, 54.

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