13 is the answer if I'm correct
Answer is C: Step 3, because a number has been added only to one side of the equation.
Hope this helps.
The airplane is 100 feet long because 5*4=20 so
that would mean that 20*5=100
A.) Yes, by AA criterion.
Triangle ABE have these angles:
∠ABE = 45° ; ∠EAB = 63° ; missing ∠ is 72°
Triangle MNP have these angles:
∠MNP = 72° ; ∠NMP = 63°; missing ∠ is 45°
AA criterion is "angle,angle" criterion. It means that the two triangles have at least two of their angles equal. Since a triangle have a total of 180°, when two of their angles are equal, the 3rd angle is also equal.
As you can see, both triangles have 45°, 63°, and 72° measurement of angles. Thus, they are similar.
