3. Patriot] Company operates with a single product. The following simple income statement relates to last year when sales units totaled 40,000 Total $ Per unit $ Sales 440,000 11.00 Variable expense 220,000 5.50 Contribution margin 220,000 5.50 Fixed expenses 100,000 Net operating income 120,000 a. What is Patriotl Company's breakeven point in units and $ ? (4 pts) b. What was Patriot] Company's margin of safety for last year in percentage, units, and dollars? (5 pts) c. If Patriotl increased quality by using materials that would raise its variable expense per unit by $0.40 what profit would Patriotl make if they sold 10% more units this year? (6 pts) d. What assumptions did you make to answer part c.? (3 points)