Multi step equations that equal 17 with fractions

Which of the following are accepted without proof in a logical system? check all that apply.

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?

The volume of a sphere is increased by 6%. calculate the corresponding percentage increased in it area.