Colleen recorded the type of trees in the woods near her house. She counted 20 trees and 50 maple trees. What is the experimental probability that the next tree Colleen finds will be a spruce tree. Answer with a fracation

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:

Aiden buys two bags of chips at $1.09 each and a 20 ounce soda for $1.20 at the gas station. he knows that the state tax is 5.5. how much change will he receive from a $5 bill?

Rectangle leg this 11feet and perimeter of 38feet what is the width of the rectangle in feet