A ball is dropped from a ladder. After the first bounce, the ball is 13.5 feet off the ground. After the second bounce, the ball is 10.8 feet, off the ground. After the third bounce, the ball is 8.64 feet off the ground.

Part a)  product a is decreasing by 18% per year1 - .18 = .82part b)  which product recorded a greater percentage change in price over the previous year?   product b recorded a greater percentage change.  justify your answer: the equation for product b is  y= 10000(.56)^x , and 1 - .44 = .56product b decreases by 44% per year

To find the  unit rate, divide the numerator and denominator of the given  rate  by the denominator of the given  rate. so in this case, divide the numerator and denominator of 70/5 by 5, to get 14/1, or 14 students per class, which is the  unit rate.