Charlie and kyle are training for a track meet. charlie's practice times for an event are represented on the graph, where y = the total miles run and x = the number of hours. kyle's practice times for the same event are represented by the linear function y = 7.5x. which statement best describes the rates of the runners?

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?