For the past three months, grace has been using her cellphone for 43 minutes, 62 minutes, and 57 minutes. how many minutes would she have to use her cellphone this month for the average usage over 4 months to be 55 minutes? plz thxs

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:

A50% increase followed by 33 1/2% decrease

Which answer goes into the box? (90° clockwise rotation, 90° counter clockwise rotation, translation, or glide reflection)