Write thThe bookstore is selling a series of 4 books for $97.50. What is the unit price for one book? Round your answer to the nearest cent if necessary. e ratio as a fraction: 630kilometers in 5hours. Simplify your answer.

You drop a rubber ball off the roof of a 50 meter high building onto a paved parking lot. it bounces back up with every bounce, but not quite all the way back up to you. after the first bounce it bounces back only 80 percent of the distance it was dropped from. the pattern continues, meaning after every bounce it comes up to just 80 percent of the previous maximum height. so if before the first bounce the height is 50 meters, what height does the ball reach after the fifth bounce? round your answer to one decimal place and chose the correct response from the choices below:

Evaluate the expression. (9 + 5)(3 + 2)0

What is the slope of the line that contains the points (-2,1) and (0,-3)