Respuesta :
The price of 4 gallons of organic milk be determined by finding the unit price ($2.52 times 2) and multiplying it by 4.
By finding the unit price and multiplying by four
The first two are forgetting 2.52 is only half a gallon
the last is wrong because you don't divide by 4 because you are adding to the price making it larger and not minmizing the price.