2.The school band is comprised of middle School students and high school students, but it always has the same maximum capacity. Last year the ratio of the number of middle school students to the number of high School students was 1: 8. However. this year the ratio of the number of middle school students to the number of high school students changed to 2 7. If there are 18 middle school students in the band this year, how many fewer high school students are in the band this vear compared to lasst year? Explain.​

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:

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

3.4a=57.8 what is the the value of a