Question

How many ways can an IRS auditor select 4 of 9 tax returns for an audit?

Answer 1

The solution would be like this for this specific problem:

 

= C (9,4) 
= 9! / (5! * 4!) 
= 126   So, an IRS auditor can select 4 of 9 tax returns for an audit in as much as 126 ways.

Answer 2

Answer:

A

Step-by-step explanation: