Answer:
$555.56
Explanation:
Since they got a $1000 rebate, that brings the price from $30,000 to $29,000. They also paid $9,000 down, so that leaves $20,000 to pay monthly.
Since it is over 36 months, divide the remaining price by 36.
20,000 ÷ 36 = 555.555555555555