Answer:
126
Step-by-step explanation:
n! / (r! (n-r)!)
In this case n = 9 and r = 4
9!/ (4! * (9-4)!)
9!/ (4! * 5!)
= 126
9! = 9x8x7x6x5x4x3x2x1
B
Answer is 35
7 x 13 expanded form is y = 7 x 13 ........ 7 dived by 13 in expand form is y=7 dived by 3
if that's not what your looking for sorry :)
