I need help with this question and an explanation " A company manufactures electrical components. The cost, $C (including rent, materials and labour), is given by the rule C = n + 3000, and its revenue, $R, is given by the rule R = 5n, where n is the number of components produced."

a. Sketch the graphs C and R on the same set of axes and determine the point of intersection.

b. State the number of components n where the costs SC are equal to the revenue $R