Problem that needs to be solved: Joe is a car salesman. => He earns 300 for every car he sells plus a 3 percent commission. Joe sells 3 cars in one week for a total of 35,243.Let's solve for the total earnings for the week.Let us first find out the amount he gets in 3 cars=> 1 car = 300 dollarsMultiply 300 dollars by 3=> 3 cars = 3 * 300 = 900 dollarsTime to solve for the commision percentage based on the given=> 35 243 dollars = total amount he received for the 3 cars he sold.=> 35 243 dollars * 0.03 = 1 057.29 dollars is the commision.Let's total or sum up=> 900 + 1 057.29 = 1 957.29 dollars