Ryan made a $3000 down payment on a car. the total cost of the car was $7500. he made 36 equal monthly payments to pay the car in full. how much did ryan pay per month?

Because he made a down payment of $3,000 he gets to subtract it out of the $7,500 that he needs to pay for the car.
$7,500 - $3,000= $4,500 
In order to find out the monthly payments you need to devide the $4,500 by the number of payments.
$4,500/36= $125 < Answer 
$125 =The monthly payments