4) J decide that he will need

Need answer for #4

What would happen to the availability of credit if banks chose to either increase or decrease the percentage of deposits they hold as reserves? Joshua has decided that he will only purchase a one-year Treasury bill with a face value of $500,000 if he receives an interest rate of 6.25%. How much will Joshua end up paying for this Treasury bill? Suppose a Treasury bond will mature in 4 years. If the bond pays a coupon of $425 per year and will make a final par value payment of $10,000 at maturity, what is its price if the relevant market interest rate is 4%