The students in Mr. Sarzoza's Physics class went to an amusement park for
a project. Each student needed an
accelerometer that costs $7.50 and a
ticket to the park that costs $30.00. If
x represents the number of students in
Mr. Sarzoza's class, which equation can
be used to find y, the amount in doilars
spent by Mr. Sarzoza's students?

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: