Ali Motors is a car dealership. On average, it sells a car for $32,000, which it purchases from the manufacturer for 28,000. Each month, Ali Motors pays $ 53,700 in rent and utilities and 69,000 for sales peoples salaries. In addition to their salaries, Sales people are paid a commission of $ 400 for each car they sell. Ali motors also pends $10,500 each month for local advertisements.

1. How many cars must Ali Motors sell each month to beak even?

2. Ali Motors has a target monthly net income of $ 69,120. What is its target monthly operating income?

3. How many cars must be sold each month to reach the target monthly net income of $69,120. If the there is not tax.