Can anyone teach me the calculation processes? I can know only answers28=c and 29=d but I do not know why those answers.

Use the following to answer questions 28 - 29 6 28 07 The following balance sheet and income statement should be used 8.154 0 84 0 J&OF . Inc 2012 Income Statement Net Sale $28 900 Less : Cost of Goods Sold 23. 400 Less : Depreciation 1600 Earnings Before Interest and Taxe 3.900 Less : Interest Paid 280 Taxable Income 83 620 1.230 Less : Taxe 82 390 Net Income 8956 Dividend $1 . 434 Additions to retained earnings &F . Inc Dec 31 . 2012 Balance Shee $2 750 $1 , 530 Accounts payable 4.000 Cash 2. 780 Long-term deb 8.000 Accounts rec 3. 410 Common stock 5. 810 Inventory 87 720 Retained earnings Total 12 840 $20, 560 Net fixed assets $20, 560 Total liabilities & equity Total assetsMaster 28. Assume that J&F, Inc. is operating at 85 percent of capacity. All costs and net working capital vary directly with sales. What is the amount of total fixed assets required if sales are projected to increase by 20 percent? B) A) $13,397.24 $13,414.14 $13,096.80 $13, 108.68 E) $12,840.00 29. Assume that all costs, assets, and current liabilities of J&F, Inc. increase directly with sales. Also assume that the tax rate and the dividend payout ratio are constant. The firm is currently operating at full capacity. What is the external financing need if sales increase by 8 percent? -$9.20 $108.14 -$12.87 -$123.92 $1 1.68 of the goal of the financial manager in a