Find the cost of credit when a microwave costs $325 with a down payment of $35 with 15 equal payments of $21

325-10= 315/15 = 21

The credit cost is 35-10 = $25 on top of $325

Step-by-step explanation:

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

hope it