HELP please due today I will give brainlist If you have the answer ​I need help with everything

Which scientist listed below is not one of those to advance the study of mathematics? a. euclid b. herodotus c. pythagoras d.archimedes

Adevice of representation that is generally accepted is called a

A. what should the time signature be for the b. every note in this example is (write the letter name.) c. circle all eighth notes. d. how many beats does the rest in the first measure get? e. give the example a final barline. bonus: include a dynamic marking of your choice.