Who was the Hellenistic (Greek) mathematician who invented the compound pulley and is known for his work with the laws governing simple machines? A. Pythagoras B. Euclid C. Archimedes D. Hippocrates
why not do a bit of Internet research towards discovering your own answers? look up "compound pulley," Pythagoras, Euclid, Archimedes, etc.
Sometimes it takes time and effort to find what you're looking for. You'd benefit far more from finding your own answers on the Net or in a book than you would from having someone else tell you the answer. Please try again.
@PilarS.xoxo : Kindly do NOT, repeat, do NOT, give away answers! Help the person asking the question the question to find his or her own answers.