Agroup 6 students was asked, how many hours did you watch television last wee? here are their responses. 20, 5, 7, 17, 16, 15, find the mean number of hours for these student. if necessary, round your answer to the nearest tenth

What is this inequality notation? t is less then or equal to 2

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:

When x = 3 and y = 5, by how much does the value of 3x2 – 2y exceed the value of 2x2 – 3y ?