Based on the utility costs of Brand C and D, there will be a difference in utility costs at the end of the year of $22.80.
First find the utility cost for Brand C in a year:
= 0.65 x 5 x 12 months
= $39
Utility cost of Brand D:
= 0.27 x 5 x 12 months
= $16.20
The difference would be:
= 39 - 16.20
= $22.80
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