can someone answer the question please

Sty Exercise 4 Major Manuscripts, Inc. 2012 Income Statement Net sales $17.100 Cost of goods sold 11,200 Depreciation 1.650 Earnings before interest and taxes 4,250 Interest paid 350 Taxable income $3,900 Taxes 1.300 Net income $2,600 Dividends $950 Major Manuscripts, Inc. 2012 Balance Sheet 2012 2012 Cash $1,040 Accounts payable $3.350 Accounts rec 700 Long-term debt 2,780 Inventory 7.500 Common stock 10,000 Total 9,240 Retained earnings 4.510 Net fixed assets 11.400 Total assets $20,640 Total liabilities & equity $20.640 Required: a. If Major Manuscripts, Inc. decides to maintain a constant debt-equity ratio, what rate of growth can it maintain assuming.that no additional external equity financing is available? b. How sustainable growth contributes towards the growth of a corporation? Discuss