Question

.

Answer 1

Hint: \[\textbf{ROWS x COLUMNS}\]

Understand?

Answer 2

Well the answer is pretty clear then.
Rows go across.
Such as:
x | ~ | ~
x | ~ | ~
(Two rows.)
Columns go up and down.
Such as:
x | x | x
x | x | x (Three columns.)

Answer 3

Yes, you are correct it is A. :-)

Answer 4

Explanation:
[ 8, -3, 15 ] > Row 1
[ 0, 10, -1 ] > Row 2
^ ^ ^
1 2 3 columns.

Answer 5

It should be 11, I am trying to write out the explanation though.

Answer 6

I agree C is the best answer choice.

Answer 7

\[1 \times 3 = 3\]
\[1 \times 3 = 3\]
\[4 \times 3 = 12\]
\[-2 \times 3 = -6\]

So C.

Answer 8

>.< I'm not very good at math...Hopefully @nincompoop can help you out.