Cindy ran 50 meters in 8 seconds, patrick ran 50 meters in 9 seconds, mathew ran 50 meters in 8.5 seconds, and gina ran 50 meters in 7.5 seconds. who was the slowest and who was the fastest? gina slowest and patrick fastest patrick slow and gina fast cindy slow and mathew fast mathew slow and cindy fast

How is it possible for someone to put an ear to a wall and hear someone in the next room?     a.sound waves can travel though solids.    b.the waves travel from room to room via air.    c.there must be some air in the wall so the sound can travel through it.    d.sound waves change to electromagnetic waves and then back again.