You pay your secretary $9.75 per hour. A stamped envelope costs 50 cents, and paper costs 6 cents per page. (a) How much does it cost to prepare and mail a 3-page letter if your secretary spends 2 hours on typing and corrections? $4 (b) 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. (Let h be the number of hours spent typing the letter, p be the number of pages used, and C be the total cost.) C = 9.75(h) + 0.06(p) +.5 (c) Use the function you made in part (b) to find the cost of preparing and mailing a 2-page letter that it takes your secretary 25 minutes to type. (Note: 25 minutes is 25/60 hour. Round your answer to two decimal places.) $4 %24

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Percentage

A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.

Algebraic Expressions

In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.

Numbers

Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.

Subtraction

Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.

Addition

Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.