College Algebra 7th Edition

Published by Brooks Cole
ISBN 10: 1305115546
ISBN 13: 978-1-30511-554-5

Chapter P, Prerequisites - Chapter P Review - Exercises: 2


(a) $C=2x+3$ (b) \$11 (c) 6 calzones

Work Step by Step

(a) There is a flat delivery fee of \$3 and an individual cost of \$2 per calzone. Thus the total cost is: $C=2x+3$ (b) We plug in $x=4$: $C=2(4)+3=8+3=11$ (c) We plug in C=15 and solve: $C=2x+3=15$ $2x=12$ $x=6$ So you can order 6 calzones.
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