Do I use who or whom and why?

1. Are you ordering around?

2. Is ready with his or her report today?

Who is the subject.

Whom is the object.

The subject and verb for 1 is You are ordering.

The subject and verb for 2 is Who is.

http://www.grammarbook.com/grammar/whoVwhom.asp

So the first one should be whom are you ordering around?

What about these

1. Are these old sneakers?

2. Is this autographed picture of Mickey Mantle?

Yes for the first one.

Neither who nor whom fit your last two sentences.

My workbook says the first word should be who or whom in each sentence.

I tried the he/ him trick but am still confused.

Are you supposed to be choosing whose or who's?

Yes just reread directions

who whom or whose...

What are your answers?

To determine whether to use "who" or "whom" in a sentence, you need to identify the word's function within the sentence.

1. "Are you ordering around?"
Here, the word "who" or "whom" would take the function of the subject in the sentence. To determine which form to use, ask yourself if you can replace it with "he" or "she" (use "who") or "him" or "her" (use "whom"). In this case, you can replace "who" with "you," so you should use "who". Therefore, the correct sentence would be: "Are you ordering around?"

2. "Is ready with his or her report today?"
In this sentence, the word "who" or "whom" would take the function of the object in the sentence. Again, to determine which form to use, ask yourself if you can replace it with "him" or "her" (use "whom") or "he" or "she" (use "who"). In this case, you can replace "who" with "him" or "her," so you should use "whom". Therefore, the correct sentence would be: "Is he or she ready with his or her report today?"