Answer:
12.5 gallons per dollar.
Step-by-step explanation:
Water costs $0.08 per gallon.
The equation y =0.08x ...... (1) relates the total cost of water (y) to the number of gallons (x) used.
Therefor for $1 i.e y = 1, the number of gallons will be available is {From equation (1)}
1 = 0.08x, ⇒ x = = 12.5 gallons.
So, the unit rate in the equation is 12.5 gallons per dollar. (Answer)