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The one in the middle because the numbers go in row with your pair see on the problem it says 400, 100, , 550 plus 70 and they are in the same.order as ur expression






Answer:PLEASE GIVE ME BRAINLIEST

One car salesperson makes a monthly salary of $400, plus $100 commission for each car sold.  

The other car salesperson makes a monthly salary of $550, plus $70 commission for each car sold.

For which number of cars, c, do they make the same amount in one month?