The height a ball bounces is less than the height of the previous bounce (friction). The heights of the bounces form a geometric sequence. Suppose a ball is dropped from one meter (1 m) and rebounds to 80% of the height of the previous bounce. What is the total distance traveled by the ball when it comes to rest?

x = -4

step-by-step explanation:

- 20 - 4(x + 3) = 4x

=> -20 - 4x - 12 = 4x

=> - 32 -4x = 4x

=> -32 = 4x + 4x

=> - 32 = 8x

=> -32/8 = x

=> -4 = x

13.46

step-by-step explanation:

16.80 x .20 = 13.46

change of stock price/initial stock price on friday * total stock value = change of stock value

0.89/73.73 *x = 42.72

x=3539.04 = total stock value at initial stock price on friday .

total stock value at initial stock price on friday/ initial stock price on friday = number of shares

3539.04/73.73 = 48 shares

they own 48 shares of this stock