Aprom ticket at valley high school cost $160. bryan is going to save money for his ticket by walking his neighbor’s dog for $21 per week. bryan has already has saved $35. which inequality could be used to find the minimum number of weeks bryan must walk the dog to earn enough to pay for his prom ticket?

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?