Preparing a letter, continued: This is a continuation.You pay your secretary $9.25 per hour. A stamped envelope costs 50 cents, and regular stationery costs 3 cents per page, but fancy letterhead...

Preparing a letter, continued: This is a continuation.You pay your secretary $9.25 per hour. A stamped envelope costs 50 cents, and regular stationery costs 3 cents per page, but fancy letterhead stationery costs 16 cents per page. Assume that a letter requires fancy letterhead stationery for the first page but that regular paper will suffice for the rest of the letter.

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.