Ajar of peanut butter is 28 oz. how many ounces it would be for 6 jars?

You can find the rate of the number of ounces in the jars of peanut butter.
you need to set up an equation that displays the constant relationship.

if A jar of peanut butter is 28 oz, then your equation would be 
28j  = o
meaning, you multiply 28 times the number of jars (J) to get the number of ounces (o).
So if the question is asking how many are in 6 jars, substitute in 6 for j.

28(6)  = o

and then simplify.

28 x 6  = 168.

so, 168  = o.

There will be 168 ounces in 6 jars of peanut butter.
hope this helps and have a great day!