Apackage of 4 mechanical pencils comes with 2 free erasers. if you get the total of 12 free erasers, how many packages of pencils did you buy?  

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:

Divide. write in simplest form 41/6 divided by 10

Write the point-slope form of the line passing through (2, -12) and parallel to y=3x.