So this morning I woke up. And had to do a survey. There was commercials, so I needed the sound. I tried to turn on my speaker and the green light wont come on. So the speaker looks like it has no power.  It is usually plug in the front of the computer, so I plugged it in the back. I plugged it in every hole that looked like that cord, and it still doesn't work. 

my husband says there is no speaker plug that plugs into a wall outlet

line in
realtek high defintion audio
not plugged in

thats what it says.  I cant find which cords that is