Can someone show me how to do this? 16! / 4! 12!

Adriver from the university of florida women’s swimming and diving team is competing in the in ncaa zone b championships

Abouncy ball is released from a certain height. on the first bounce, it travels 32cm. with each subsequent bounce, it travels 9/10 the distance of the previous bounce. what is the total distance that the ball has traveled when it completes its 25th bounce?

Create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1.