a salesperson at a jewelry store earns 6% commission each week. last week he sold 540 worth of jewelry. how much did he make in commission? how much did the jewelry store make from his sales?

The point a is at –2 and the point b is at 7. marissa would like to divide this line segment in a 4: 3 ratio, and she would like to use the formula x = (x2 – x1) + x1. what values should she substitute into the formula? a = a + b = x1 = x2 =