Question

Need help with my work pleasem

Answer 1

Let me start with the second screenshot :-
To find the scale factor you have to enlarge/ dilate A to get B you have a given side so assume that all sides are dilated to the same extent
 : .   $1 \frac{1}{2} / \frac{3}{4} = 2$

Thus one can say m would be 
      $\frac{1}{2} * 2 = 1$

And N would be 
      $\frac{5}{6} * 2 = \frac{10}{6}$