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Answer :

Abiolataiwo2015go

The percentage that the family reduce the total utility cost is 25%.

Utility cost percentage:

Using this formula

Percentage=Cable Tv/ Total utility cost

Where:

Cable TV=$105

Total utility cost=$420

Let plug in the formula

Percentage=$105/$130+$150+$65+$75

Percentage=$105/$420

Percentage=0.25×100

Percentage=25%

Inconclusion the percentage that the family reduce the total utility cost is 25%.

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