Answer
Dazzle.
Work Step by Step
We divide the cost by the number of loads to find the best deal. For Dazzle:
$$ =\frac{5.99}{128} = .05$$
For the Spot-B-Gone:
$$ =\frac{8.29}{150} \\ = .06$$
The Dazzle is the better deal.
Basic College Mathematics (10th Edition)
by Lial, Margaret L.; Salzman, Stanley A.; Hestwood, Diana L.
Published by
Pearson
ISBN 10:
0134467795
ISBN 13:
978-0-13446-779-5
Chapter 5 - Ratio and Proportion - 5.2 Rates - 5.2 Exercises - Page 345: 34
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