2. A textDOOK salesperson's annual Income depends on the amount or his sales. His annual income is a salary of $24500 plus 13% of his annual sales. Write a linear equation for his annual income for sales of x dollars. (I = mx + b). 3. Consider the equation V = 4h where V is the volume (in cubic centimeters) of a box with a variable height h in centimeters with a xed base of area 4 cm2. Complete the table for V = 4h. Then plot the points and graph the line