I dont know how to copy and paste

To copy and paste information from one point to the other you have to know three things. highlighting the information to copy, how to copy and how to paste.

you highlight by holding the shift key down and then running the mouse over the area you are choosing or by holding the shift key down and using your arrow keys on the keyboard to select what you want to copy, don't let up on the shift key until you have everything you want highlighted, this tells the computer, hey this is what i want to copy

now to actually tell the computer to copy it for you you will hold the ctrl key down and at the same time hit the letter C key that copies things

then you go where ever you want to paste it and click you mouse to set it on the page and then hit the ctrl key and the V key and that is the paste command, it will place whatever you copied there on that page where you want it.

CTRL and C at the same time Copies what ever is highlighted
CTRL and V pastes what you copied