good luck in first grade kid
        
             
        
        
        
The answer I believe is b
        
             
        
        
        
Answer:
A.
Step-by-step explanation:
Rotations preserve shape <u>and</u> size, but a dilation with a factor of 3, no matter where in the sequence of transformations it is, results in a shape 3 times larger.  So rotation followed by the dilation will end up being a rectangle similar to the original but 3 times its size.
 
        
             
        
        
        
A
evaluate f(5) and f(2)
f(5) = 5m + b and f(2) = 2m + b, hence
f(5) - f(2) = 5m + b - 2m - b = 3m
the expression simplifies to
 = 2 ( cross- multiply )
 = 2 ( cross- multiply )
3m = 6 ( divide both sides by 3 )
m = 2 → A