I think assembly level command mov ,push ,call
Answer:
Swapping two numbers means exchange the values of two variables with each other.
Answer:
Subtraction
Explanation:
That is subtracting the values of two cells.
You know because of the "-" sign
Answer:

Explanation:
Given
--- starting index
Required
Change the starting index to 
We have:

To change the starting index to k, we simply rewrite as:

<em>In this case; k=1; so, the starting index will be: </em>
<em />