Please show excel formulas.

Thanks

a) Fill in the blanks on the Barking Dog Voices Corporation (no preferred stock). b) What must the average tax rate be? Revenues 800,000 Expenses 150,000 Net Income Retained Earnings, Jan 1 300,000 Dividends Declared 150,000 Retained Earnings, Dec 31 270,000 Current Assets, Dec 31 280,000 Non-current Assets, Dec 31 Total Assets, Dec 31 Current Liabilities, Dec 31 40,000 Non-current Liabilities, Dec 31 Total Liabilities, Dec 31 210,000 CS & Cap. in Excess of Par, Dec 31 520,000 Total Stockholders' Equity, Dec 31