4. A company reports the following on their balance sheet: Cash $ Marketable Securities $ Accounts Receivable S Inventory $ Accounts Payable $ 140,000 35,000 52,500 87,500 140,000 a. Calculate the working capital of the company: (3 Points) b. Calculate the current ratio of the company: (3 Points) C. Calculate the quick ratio of the company: (3 Points)