Exercises 4.2: Graphs of Linear Equations Progress save Score: 6/10 9/10 answered Question 10 A company makes pens. They sell each pen for $6. Their revenue is represented by R = 6 x. The cost to make the pens is $2 each with a one time start up cost of $4500. Their cost is represented by C = 2 x + 4500. a) Find the profit, P, (P = R - C) when the company sells 1000 pens. O 6000 O -6000 10500 O -2500 O -500 b) Find the number of pens they need to sell to break even (when R = C). O 2250 O 1225 O 750 O 1125 Notes