Answer
Plan C
Work Step by Step
We divide the monthly cost by the number of MB to find the cost per MB:
Plan A: $=\frac{45}{1500} = .03$
Plan B: $=\frac{30}{500}=.06$
Plan C: $=\frac{60}{2500} = .02$
Plan C is the best.
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 346: 37
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