2. Singh makes a base salary of $2400 per month. Once he reaches $50000 in total sales, he earns an additional 5% commission (salary) on the amount by which his sales exceed $50000. Let s be the amount of his total sales for the month and G(s) be the amount of his salary for the month. Answer either Part (a) OR Part (b) below. a. 4 points. Graph G(s) for s values between $0 and $100000 in sales. Indicate your scale on both the horizontal and vertical axes, and be sure to label what quantities (salary or sales) each axis represents OR b. 4 points. Write a piecewise-defined function to model the Singh's total monthly salary G(s) (in dollars) as a function of the amount of sales s