## Basic College Mathematics (9th Edition)

Published by Pearson

# Chapter 4 - Decimals - 4.4 Multiplying Decimal Numbers - 4.4 Exercises - Page 294: 56

#### Answer

(a) $\$175.35$(b)$\$5.45$

#### Work Step by Step

(a) We know that you order one of each type of shirt for yourself. From the table, the sum is: $14.75+16.75+18.95+21.95=\$72.40$In addition, you order three XXL shirts at$\$21.95$ each plus \2$for the size. Adding this to the previous total, we get:$72.40+3*21.95+3*2=72.40+65.85+6=\$144.25$ We calculate the shipping based on this total, which comes out to $\$11.95$plus$\$4.25$ for the addition address. This brings the total to: $144.25+11.95+4.25=\$160.45$Finally, we need to include the cost of the monograms (2 at$\$4.95$ each) and the gift box ($\$5$):$160.45+2*4.95+5=\$175.35$ (b) We see from part (a) that the cost of the shirts for yourself (with monograms) comes out to: $14.75+16.75+18.95+21.95+4.95*2=\$82.30$And the cost of the shirts for dad (with gift box) comes out to:$21.95*3+3*2+5=\$76.85$ Thus the difference is: $82.30-76.85=\$5.45\$

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