A) The total amount of the repair that is covered is the cost of the repair plus tax, minus the deductible. The cost of the repair plus tax is:
$6,400 x 1.08 = $6,912
So the total amount covered is:
$6,912 - $1,800 = $5,112
Therefore, the total amount of the repair that is covered is $5,112.
B) If Sherman has had no previous claims in the past year, he will have to pay the amount of the deductible, which is $1,800.
C) The insurance company will have to pay the cost of the repair plus tax, minus the deductible. We already calculated the cost of the repair plus tax to be $6,912, and the deductible is $1,800. Therefore, the insurance company will have to pay:
$6,912 - $1,800 = $5,112
So the insurance company will have to pay $5,112.
I hope this seems right to you!