A set of pencils sells for $2.75 and costs $0.60 to make. Twenty-five percent of the profit (the difference between the purchase price and the amount it
costs to make) from each set of pencils goes to a school.
If 300 sets are sold, what is the amount of money that will go to the school?

Combine the information in the problem and the chart using the average balance method to solve the problem.

Starting at home, emily traveled uphill to the hardware store for 606060 minutes at just 666 mph. she then traveled back home along the same path downhill at a speed of 121212 mph. what is her average speed for the entire trip from home to the hardware store and back?

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?