Can someone explain to me what simplify means in math?

Apine tree that is 140 feet tall is added to the sample. how will this outlier affect the shape of the box plot?

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:

Need 50 will mark brainliest answer. find the lengths of all the sides and the measures of the angles.