REVIEW: Candace purchased 6 gallons of gas for $13.56. What is the constant of proportionality that relates the cost in dollars, y, to the number of gallons, x?Remember, the constant of proportionality is  k=yxk=yx .(1 point)Responses$1.23 per gallon$1.23 per gallon$2.26 per gallon$2.26 per gallon$0.44 per gallon$0.44 per gallon$3.04 per gallon

To find the constant of proportionality, we need to divide the total cost by the number of gallons.

Total cost = $13.56
Number of gallons = 6

Constant of proportionality (k) = Total cost / Number of gallons
= $13.56 / 6
= $2.26 per gallon

Therefore, the correct answer is $2.26 per gallon.