Azero-coupon bond is a security that pays no interest, and is therefore bought at a substantial discount from its face value. if stated interest rates are 4% annually (with quarterly compounding) how much would you pay today for a zero-coupon bond with a face value of $2,700 that matures in 6 years?

The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends more than a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?