The Weber Company purchased a mining site for $527,108 on July 1. The company expects to mine ore for the next 10 years and anticipates that a total of 82,993 tons will be recovered. During the first year the company extracted 5,802 tons of ore. The depletion expense is

The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends > 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?