To determine which store has cheaper gasoline, let’s analyze the data points from the graphs:
For Store A:
- At 0 gallons: $0
- At 5 gallons: $20 (so $20/5 = $4 per gallon)
- At 10 gallons: $40 (so $40/10 = $4 per gallon)
- At 15 gallons: $60 (so $60/15 = $4 per gallon)
From the data, the cost of gasoline at Store A is consistently $4 per gallon.
For Store B:
- At 0 gallons: $0
- At 4 gallons: $14 (so $14/4 = $3.50 per gallon)
- At 8 gallons: $28 (so $28/8 = $3.50 per gallon)
From the data, the cost of gasoline at Store B is consistently $3.50 per gallon.
Comparing the two prices:
- Store A: $4 per gallon
- Store B: $3.50 per gallon
Thus, Store B has the cheaper gasoline, at $3.50 per gallon.
The correct response is: Store B has the cheaper gasoline. The cost of gasoline is $3.50 per gallon.