X can be -1 or 1 for the square root to be 0
The correct option is a
For #1 it's going to be proper because it's pretty specific, and for number two it's going to be all common because it's not citing anything specific.
The graph should look like this:
D. 10 x 62
If one row needs 62 bricks and there's 10 rows, you multiply them to get how many bricks nick needs