a$.$ Interest coverage ratio $($Assume that year $1$ EBIT was $1,307$ and year $1$ interest expense was $130.$

b$.$ Average collection period $($Assume that the accounts receivable balance was $970$ on December $31$ of the previous year and that year $1$ sales were $2,738.)($Use $365$ days in a year.$)$

c$.$ Current ratio d$.$ Quick ratio