最新power point

Hi :


Anyone who can give me a helping hand ?

I think V1 and V3 in this powerpoint is not right, is it ?
Can anyone tell me the value of the other resistors ?

Thanks for your help.

Best regards,
ahwah

Hi :

I forgot to ask, the blue line that is connection the 5's where does it go to ?  To the ground ?

Thanks
ahwah