Lisa collects rainwater in a large barrel that weighs 25 pounds. when there
are 10 gallons of water in the barrel, the total weight of the barrel and the
water is 108.4 pounds. when there ale 20 gallons of water the total weight is
191.8 pounds
which equation and graph match this situation?

Apublic library wants to place 4 magazines and 9 books on each display shelf. the expressions 4s +9s represents the total number of items that will be displayed on s shelves. simplify this expression

What are the sotions to the quadratic equation 9x^2=4

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: