Ask a teacher or look it up or use a text book
No. If a scatterplot shows no association, then there is no relationship between the variables.
C because all the angles have to add up to 180
Since the shape is a square the sides are equal. Then we need to find x such that x * x = 169.
Sqrt(169) = 13
So x = 13
The answer is m=6. I used cross multiplication to effectively solve this question.