4. The income statement for Broxie Machine Tool Company for 2018 appears below. BROXIE MACHINE TOOL COMPANY Income Statement For the Year Ended December 31, 2018 Sales (40,000 units) $1,000,000 Variable expenses. 700,000 Contribution margin 300,000 Fixed expenses 360,000 Net income (loss). $ (60,000) Instructions Answer the following independent questions and show computations using the contribution margin technique to support your answers: a) What was the company's break-even point in sales dollars in 2018? b) How many additional units would the company have had to sell in 2019 over the number sold in 2018 in order to earn net income of $45,000? (Question 4 Continued) c) How many additional units would the company have had to sell in 2019 over the number sold 2018 to earn an after-tax net income of $45,000 assuming at Fed plus CA combined tax rate of 30%? d) What is the impact of the tax consideration in [c] over your answer in b? e) If the company is able to reduce variable costs by $2.50 per unit in 2018 and other costs and unit revenues remain unchanged, how many units will the company have to sell in 2019 in order to earn a net income of $45,000 on a before tax_basis