If a 10 ounce jar of peanut butter cost $3.90 what is the price of 1 pound of peanut butter

There are 16 ounces in 1 pound. So, to find the price of 1 pound of peanut butter, we need to divide the cost of the 10-ounce jar by 10 and then multiply by 16.

Price of 1 pound of peanut butter = ($3.90 / 10) * 16
Price of 1 pound of peanut butter = $0.39 * 16
Price of 1 pound of peanut butter = $6.24

Therefore, the price of 1 pound of peanut butter is $6.24.