Answer:
We should buy at Store 1
Explanation:
To compare both stores , we have to get the price of 2 gallons of milk in each of them.
Store 1 sells 1 gallon for $3.00
So, 2 gallons will be
Price = $3.00 x 2 = $6.00
Store 2 sells milk for $0.80 per quart.
Each gallon has 4 quarts, so 2 gallons will be 8 quart
Price = $0.80 x 8 = $6.40
Store 2 is more expensive than Store 1 , so we should buy at Store 1