Answer:
Step 3
Step-by-step explanation:
This is the right one because you are adding two thing in step two which lead to step 3
The answer is = -3, hope this helps!
3/30 or 1/10 or $3
There all the same answer just different ways
The first one is unsimplified The second one is simplified The last one is in money form
Step-by-step explanation:

What are you trying to do like simplify or what i can possibly help if i know