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:

Step-by-step explanation:
Swap the fraction,

or around 7.142...
Answer:
go down there
Step-by-step explanation:
dsbfgriuuir
Answer:
the slope is rise over run in a graph
Step-by-step explanation:
Answer:
Step-by-step explanation: Opposite sides of a parallelogram are equal.