Answer: 0.4
Explanation:
If the height of the first bounce is 5.5, then you find what 60% of 5.5 is and to do that you do 60/100 and x/5.5 so cross multiply 60x5.5 to get 330 then divide by 100 to get 3.3 and you do that 5 more times to get 0.42768 which when rounded to the tenths place, gets you 0.4