WILL MARK BRAINLIEST … if right ! A company finds that if it charges x dollars for a cell phone, it can expect to sell 1,000-2x phones. The company uses the function r defined by r(x)=x • (1,000-2x)to model the expected revenue, in dollars, from selling cell phones at x dollars each.

What is the maximum amount of revenue (in dollars) they can make at that price ?

What price (in dollars) should the phone be set at to get maximum revenue?

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?