WILL GIVE BAINLY PLEASE HELP

what is the reicprocal of 6

A. -1/6
B. 1/6
C. 6
B. 1

what is the reciprocal of 4

A. 4
B. 1
C. 1/4
D. -1/4

simplify (-24ab) divived by (-3)

A. -8ab
D. -1/8ab
C. 1/8ab
D. 8ab

simplify (-8x) divived by (-4)

A. 2x
B. 4x
C. 16x
D. 1/16x

simplify (-36ac) divided by (-9)

A. 4ac
B. 1/4ac
C. -1/4ac
D. -4ac