The financial statements of Sunshine Inc. for the year ended June 30, 2023, are as follows:

Income Statement	Amount
Net Sales	$800,000
Cost of Goods Sold	$480,000
Operating Expenses	$200,000
Interest Expense	$30,000
Tax Expense	$27,000

Balance Sheet	Amount
Current Assets	$220,000
Total Assets	$520,000
Current Liabilities	$80,000
Long-term Debt	$140,000
Shareholders' Equity	$300,000

Requirements: a. Calculate the debt to equity ratio. b. Determine the interest coverage ratio. c. Compute the return on equity. d. Evaluate the company's quick ratio. e. Assess the company’s gross profit margin.