Case x case y case z cash $ 2,000 $ 110 $ 1,000 short-term investments 0 0 600 current receivables 350 590 700 inventory 2,650 2,300 4,100 prepaid expenses 200 500 900 total current assets $ 5,200 $ 3,500 $ 7,300 current liabilities $ 2,200 $ 1,200 $ 3,750 compute the current ratio and acid-test ratio for each of the above separate cases