Concept explainers
Remainder: Round all answer to two decimal places unless otherwise indicated.
a. How much does the stationery alone cost for a 3-page letter?
b. How much does it cost to prepare and mail a 3-page letter if your secretary spends 2 hours on typing and corrections?
c. Use a formula to express the cost of the stationery alone for a letter as a function of the number of pages in the letter. Identify the function and each of the variables you use, and state the units.
d. Use a formula to express the cost of preparing and mailing a letter as a function of the number of pages in the letter and the time it takes your secretary to type it. Identify the function and each of the variables you use, and state the units.
e. Use the function you made in part d to find the cost of preparing and mailing a 2-page letter that it takes your secretary 25 minutes to type.
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EBK FUNCTIONS AND CHANGE: A MODELING AP
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