The summary balance sheet of Markel's Interior Emporium show the following $($in $ millions$)$ : Current assets $$200$ Current liabilities $ $160$ Long$-$term assets $700$ Long$-$term debt $480$ Other liabilities $90$ Equity $170$ $$900$ $ $900$ Round your numbers to two decimals. a$)$ What is ABC$$s total debt$-$equity ratio? b$)$ What is the ratio of total long$-$term debt to total long$-$term capital? c$)$ What is the net working capital? d$)$ What is the current ratio?