If a 20 oz bottle of Powerade costs US 1.25 how much would a gallon cost?

A gallon contains 128 ounces. If a 20 oz bottle of Powerade costs $1.25, then the cost per ounce is $1.25 / 20 oz = $0.0625 per ounce. To find the cost of a gallon, multiply the cost per ounce by the number of ounces in a gallon: 128 oz × $0.0625/oz = $8.00. Therefore, a gallon of Powerade would cost $8.00.