Create a simplified expression for the profit function. Remember to use brackets when you subtract the cost function from the revenue function since the minus sign will change the sign of all of the terms in the cost function. = (300 − 22) − (5000 + 40). The simplified profit function will be quadratic. Make sure it is in the form = 2 + +

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?