1.If a firm increased its current assets and decreased its current liabilities, the firm's net working capital would (increase/decrease/stay constant)

2.A price-to-sales ratio of 8.5 indicates that investors are willing to pay ( $1 for every $8.5 of sales/ $8.5 for every $1 of sales)

3.When a bond's coupon rate is higher than the yield to maturity, the bond is selling at a(premium/discount/par)

4.Portfolio diversification eliminates(undiversifiable/diversifiable)

please answer the questions with the options given