How can you model a percent

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?

What is coefficient of the term of degree of degree 5 in the polynomial below

Write the point-slope form of the line passing through (2, -12) and parallel to y=3x.