Answer
38 pack
Work Step by Step
(6.50-2)$\div$12=0.38 per strip
7.50$\div$24=0.31 per strip
(8.95-1)$\div$30=0.265 per strip
9.95$\div$38=0.262 per strip
The 38 pack is cheapest per strip.
Basic College Mathematics (9th Edition)
by Lial, Margaret L.; Salzman, Stanley A.; Hestwood, Diana L.
Published by
Pearson
ISBN 10:
0321825535
ISBN 13:
978-0-32182-553-7
Chapters 1-10 - Cumulative Review Exercises - Page 760: 45
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