Round 5.492 to the place value of the underlined digit

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?

25 ! i need asap! ! ill mark brainliest!

Charlie tosses five coins.what is the probability that all five coins will land tails up.