Solve the problem. how many ways can an irs auditor select 5 of 10 tax returns for an audit?

The number of ways an IRS auditor can select 5 of 10 tax returns for an audit is:

                                  252 ways

We know that the number of ways of selecting r items from a set of n items is calculated with the help of a combination formula.

i.e.

Here we are asked to find the number of ways  an IRS auditor can elect 5 of 10 tax returns for an audit.

i.e. we have: n=10 and r=5

Hence, the number of ways of doing so is:

you would need to know all the numbers that are on there

step-by-step explanation: