#17-18: Mario's car has a 16-gallon tank. He left for a four-day round trip. Day 2: He left at 6:50 AM and arrived at 2:05 PM after driving 348 miles. What was his average speed in miles per hour?

When he left, he had a full tank of gas. At the end of the day, it took 14.5 gallons to refill his tank. How many miles per gallon did he get?​

5(-9w) put expression in distributive property

Consider the set of all four-digit positive integers less than 2000 whose digits have a sum of 24. what is the median of this set of integers?

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?