Hudson's car was averaging 25 miles per gallon of gasoline. After switching fuels, his car now averages 29 mile per gallon.
What was the percent increase in fuel efficiency?

The depreciation per unit for a company

Suppose a ball is dropped fromca height of 6ft. it bounces back up but time it bounces, it reaches only 7/10 of its pervious height. what is the total of each height that the ball reaches after 5 bounces

Which is the equation of an ellipse with directrices at x = ±4 and foci at (2, 0) and (−2, 0)?