Please complete part 2 and 3 please.

Morrisey & Brown, Limited Income Statement For the Month Ended September 30 Variable expenses: 0 Fixed expenses: $ Using the high-low method, separate each mixed expense into variable and fixed elements. Express the variable and fixed portions of each mixed expense in the form Y = a + bx. (Round the Variable cost per unit to 1 decimal place.) Variable Cost Fixed Cost Formula per unit Y = per unit Y= Morrisey & Brown, Limited Income Statements For the Three Months Ended September 30 July August Sales in units 5,750 6,250 Sales $ 632,500 $ 687,500 Cost of goods sold 379,500 412,500 Gross margin 253,000 275,000 Selling and administrative expenses: Advertising expense 28,600 28,600 Shipping expense 57,500 60,900 Salaries and commissions 105,000 111,700 Insurance expense 7,700 7,700 Depreciation expense 24,600 24,600 Total selling and administrative expenses 223,400 233,500 Net operating income $ 29,600 $ 41,500 September 6,750 $ 742,500 445,500 297,000 28,600 64,300 118,400 7,700 24,600 243,600 $ 53,400 Required: 2. Using the high-low method, separate each mixed expense into variable and fixed elements. Express the variable and fixed portions of each mixed expense in the form Y = a +bX. 3. Redo the company's income statement at the 6,750-unit level of activity using the contribution format