Answer:
$3.979
Explanation:
1 cent =0.01 dollar
52 cents =

There is an off of 0.52 dollars in 1 gallon
So, off of amount in 12.7 gallons =

Mrs. haines paid $43.94 for 12.7 gallons of gas after off
So, actual cost = $43.94+$6.604 = $50.544
So, actual cost of 12.7 gallons of gas = $50.544
Actual cost of 1 gallon of gas =

Hence the original price of the gas per gallon is $3.979