A firm has current liabilities of $500. Account receivables are $300 and inventory is $400. All other current assets equal $800. Long term assets are $5,000, long term liabilities are $2,500, sales is $8,000, EBIT is $2,000, interest expenses are $600 and net income is $100. Compute the following ratios:
a) Current ratio
b) Debt ratio
c) TIE
d) ROA
e) DSO