Respuesta :

sqdancefan
You can multiply by 6 to get
 3au -2bv > 60
Then add 2bv-60 
 3au -60 > 2bv
Now, divide by 2b
 (3au -60)/(2b) > v

This can be rearranged to match the 4th selection.
 v < (3au - 60)/(2b)