Victoria wants to earn an average grade of at least 80 on her four algebra tests. so far she has taken 3 tests and earned grades of 54, 89 and 100. is the minimum score that she needs to earn on the fourth test to get an overall average score of 80.

Apath 3 m wide runs around the inside of a square park inside 60 m.find the area of the path.pls

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:

Asquare picture with sides of 32 inches is to be mounted on a square mat with sides of 52 inches. find the area of the mat that will remain uncovered by the picture.