Numerology. 1  Chaldean Numerology. The numerical value of combined joint special operations task force in Chaldean Numerology is: 7. 2  Pythagorean Numerology. The numerical value of combined joint special operations task force in Pythagorean Numerology is: 5.
The short answer is no. Itâs unusual to put a comma before because. You only do it when you need the comma to prevent confusion because your sentence could have two meanings. The Chicago Manual of Style has an excellent entry on this topic in its Q&A section online. It gives the example.
There is no real 'right' answer to this question; it is merely a matter of consistency and personal preference. I like to use a comma before 'and', but if you don't, that is also fine. The important thing is that you remain consistent. If you are going to put a comma before 'and' in a list, then always do it.