I am taking practice questions for my upcoming quiz and I keep getting different answered. Please help assist in how these are calculated.

In 2018, Jake's Jamming Music, Inc. announced an ROA of 8.48 percent, ROE of 13.70 percent, and profit margin of 9.7 percent. The firm had total assets of $8.7 million at year-end 2018.

Calculate the 2018 value of net income available to common stockholders for Jake's Jamming Music, Inc.(Enter your answer in dollars. Round your answer to the nearest whole dollar.)

Calculate the 2018 value of common stockholders' equity for Jake's Jamming Music, Inc.(Enter your answer in dollars not in millions and round to the nearest whole dollar.)

Dudley Hill Golf Club's market-to-book ratio is currently 3.3 times and the PE ratio is 7.15 times.

If Dudley Hill Golf Club's common stock is currently selling at $32.30 per share, what is the book value per share?(Round your answer to 2 decimal places.)

What is the earnings per share?(Round your answer to 2 decimal places.)

Last year, Hassan's Madhatter, Inc. had an ROA of 6.4 percent, a profit margin of 10.90 percent, and sales of $20 million.

Calculate Hassan's Madhatter's total assets.(Enter your answer in dollars, rounded to the nearest dollar.)

Last year Lakesha's Lounge Furniture Corporation had an ROE of 17.6 percent and a dividend payout ratio of 21 percent. What is the sustainable growth rate?

What is the sustainable growth rate?(Do not round intermediate calculations. Round your answer to 2 decimal places.)