Analyze the following financial data for SkyTech Ltd. for the fiscal year ended September 30, 2023:

Income Statement	Amount
Revenue	$1,200,000
Cost of Goods Sold	$720,000
Operating Expenses	$300,000
Interest Expense	$40,000
Tax Expense	$28,000

Balance Sheet	Amount
Current Assets	$250,000
Total Assets	$600,000
Current Liabilities	$120,000
Long-term Debt	$180,000
Shareholders' Equity	$300,000

Requirements: a. Compute the current ratio. b. Calculate the net profit margin. c. Determine the return on assets. d. Evaluate the debt to equity ratio. e. Analyze the company's interest coverage ratio.