There are exactly 15000 dollars in 15000 dollars. If you meant a currency other than a dollar, you should have specified which one. Furthermore, you need to specify which country's dollars since there are many countries across the world that use dollar as their main currency unit.
from 13 to 35 dollars an hour depends on what your certifacations are. you can earn from 15000 to 100000 dollars a year depends on if its commercial welding or independent welding give me more of an answer