Remark
Many calculators have a key that will do this in one step. Mine is one of them. So let's start with the answer and then we'll do it the long way.
9C3 = 84. You put it into your calculator as 9 2nF nCr 3 =
Solution

3*4*7 = 84 which is what you set out to show.
Answer:
B? I am confused.
Step-by-step explanation:
Answer:
Its actually one solution it is solvable and only has one solution
Step-by-step explanation:
2.463877654353522256198573488 thats what it seaded
<span>4000 so the answer is C
Hope this helps</span>