At the end of Year 2, retained earnings for the Baker Company was $3,050. Revenue earned by the company in Year 2 was $3,300, expenses paid during the period were $1,750, and dividends paid during the period were $1,150. Based on this information alone, what was the amount of retained earnings at the beginning of Year 2?

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?