13) Yellowstone National Park is a popular field trip destination. This year the senior class at High School A and the senior class at High School B both planned trips there. The senior class at High
School A rented and filled 7 vans and 3 buses with 236 students. High School B rented and filled
4 vans and 9 buses with 419 students. Every van had the same number of students in it as did the
buses. How many students can a van carry? How many students can a bus carry?

Horace's speedometer reads 60 miles per hour, but during a road test he finds that he was actually driving 58 mph. what is the percent error in horaces speedometer?

What is the quotient of m^6/5 ÷ 5/m^2? assume m does not equal pl

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?