A ball is dropped from a height of 20 ft. Each time it bounces to 70% of the previous height. What is the total vertical distance the ball has traveled when it hits the ground for the 8th time? (answer to 2 decimal places)

Fred has a spinner that is split into four equal sections: red, blue, green, and yellow. fred spun the spinner 688 times. which of the following would be a good estimate of the number of times the spinner lands on the green section? a. 269 b. 603 c. 344 d. 189