Help on Dance Questions?

if you can answer any of them please do. I have done 70 out of 100 and need help on the others please:

1.The direction that a dancer moves in is called what
2.The shakers made their home where after moving to the usa
3.The type of floor commonly used as a dance floor
4.tap shoes have what on the soles to make the tapping sound
5.the golden age of ballet was when
6.what is a fundamental part of a female ballet dancers development
7.a high energy dance with partner lifts and acrobatic movements is…
8.ballroom dance where the dancers back step on the 3-4 count
9.why did ballet dancers begin wearing tutus instead of long dresses