You purchase a computer for $875.00 plus 5% sales tax. you decide to finance it through the store's 0% program for 12 months. the terms state you
pay nothing until the 12 months are over. when you receive the bill, you forget to pay it and are assessed a late fee of $39.00 plus the interest
accrued to that point at 14.25% apr. how much interest will you be charged?

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?