The one i need in is 13 the one that says write

Example: lets say you chose the number 4,444

The greatest value will be the first 4 because the rest of the fours will turn into zeros and it will just be 4,000 but if we chose ny of the other numbers it would 400 or 40

The least value will be the last four or the second to last. i'm not sure but this is because it will be 40 or 4 when you take the rest of the numbers out.

Hope this help. if there is a misunderstanding  in my explanation, please say so

the first one, all those points on the line just make a strait line.