Question

Is this a complex,compound-complex,or a simple sentece?
1.)The cow sneezed,and everyone laughed.(simple?)
2.)Ruth and Jack returned to Jupitar.(simple?)
3.)The expedition to the Mars should be very informative.(compound?)
4.)My friends like to cook and eat monster feet.(complex?)
5.)Unless we have our tickets,we can't get into the game.(complex?)
6.)I know you love cheese,but that isn't normal.(simple?)
7.)What types of sentences have subordinting conjuctions in them?(complex?)
8.)His parents were upset untill they heard the story.(compound)
9.)Todd and Sam bought a new boat.(simple?)