The national average utility cost is $270.48 per month. If the average phone bill is 12.6% of the total amount and the average utility cost for Dallas is $326, what would be the cost of a typical Dallas home phone bill?

The cost of a typical Dallas home phone bill can be calculated by multiplying the given average utility cost for Dallas by the decimal equivalent of the given percentage.

average phone bill cost = ($326) (0.126)

average phone bill cost = $41.076

Thus, the phone bill of average Dallas home is approximately $41.076.