Round 11 580 to 3 significant figures

Me find the measure to side a and the process to solve the problem you appreciate it : )

Suppose a ball is dropped fromca height of 6ft. it bounces back up but time it bounces, it reaches only 7/10 of its pervious height. what is the total of each height that the ball reaches after 5 bounces

Find the average speed of a rabbit that runs a distance of 22 m in a time of 1.8 s .