You know the price of one gallon of organic milk, $2.52. At the same rate, you want to find out how much 4 gallons of organic milk would cost.
You can solve this problem by creating an equation, where you solve for the variable x. The variable x will be the total cost of 4 gallons of organic milk.
Since each gallon is priced at $2.52 per gallon, you can make an expression to show for this. Your expression for price per gallon will be 2.52g, where g is the number of gallons.
You can plug in 4 for g because we are also given how many gallons we are going to be solving for: 4 gallons of organic milk.
Finally, on the other side of the equals sign we will have x because we are going to be solving for x (total cost of 4 gallons milk). Now you can create the equation and solve for x.
x = 2.52(4)
x = 10.08
After solving for x, we get the answer of 10.16, so that means that the total cost of 4 gallons of organic milk will be $10.08 at a rate of $2.52 per gallon.