I need answers for questions 5, 6, & 7

Determine the amount of sales (units) that would be necessary under Break-Even Sales Under Present and Proposed Conditions Darby Company, operating at full capacity, sold 112,050 units at a price of $45 per unit during the current year. Its income statement for the current year is as followS Sales Cost of goods sold Gross profit Expenses: $5,042,250 2,490,000 $2,552,250 Selling expenses $1,245,000 Administrative expenses 1,245,000 2,490,000 $62,250 Total expenses Income from operations The division of costs between fixed and variable is as follows Variable Fixed 70% 75% 50% 30% 25% 50% Cost of goods sold Selling expenses Administrative expenses Management is considering a plant expansion program that will permit an increase of $405,000 in yearly sales. The expansion will increase fixed costs by $40,500, but will not affect the relationship between sales and variable costs Required