4. nico joven presently earns $348.40 per week. he claims
himself and his mother as allowances. he is single. he is to get
a new job classification, which will result in a 15% increase in
pay. he also plans to marry. after his marriage, he will claim
his wife, himself, and his mother as allowances. how much
less will be withheld weekly for federal income tax?

6

Step-by-step explanation:

This is a case of combination since the order does not matter, it only matters that there must be a marble in each one inside, therefore we must apply its formula.

xCn = n! / x! * (n - x)!

n, in this case it would be 4 because we must subtract 2 from the total 6, since there must already be one inside in each display case.

x = 2, since it is the number of showcases.

Replacing:

 2C4 = 4! / 2! * (4 - 2)! = 6

Which means that you can in six different ways.