Use the data below to: $($i$)$ calculate the followings and $($ii$)$ explain your results:

$($a$)$ Current ratio

$($b$)$ Acid test ratio

$($c$)$ Average collection period

$($d$)$ Inventory turnover

$($e$)$ Gross profit margin

$($f$)$ Operating profit margin

$($g$)$ Net profit margin

$($h$)$ Total tangible asset turnover

$($i$)$ Times interest earned

$($j$)$ Profit before taxes

Please note that all sales are on credit.