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2. ABC's income statement is as follows: Sales (units) Sales revenue Total expenses Net income 2019 2020 2,600 3,500 $ 130,000 S 175,000 110,000 128.000 $ 20,000 $ 47,000 Use the high-low method to estimate variable and fixed costs for 2020. b. What assumptions did you make in answering the previous question? c. In what cases might it be unwise to use high-low analysis to estimate cost structure (fixed versus variable)? d. What is the break-even point in 2020? e. If advertising expenditure were increase by $1,000 in 2020, how would this affect the break-even point? And why does this change occur? f. What other factors might management consider before making an investment in advertising