Answer:
27
Step-by-step explanation:
first we can simplify by dividing by r

the r on the bottom of the fraction will cancel out one of the r's on top, this happens because anything divided by itself is 1, thus r divided by r is 1
finally we can evaluate when r =3,
9r = 9(3) = 27
Answer: 19
Step-by-step explanation:
g(4) = 4² + 3
g(4) = 16 + 3
g(4) = 19
The scale factor is 4 5.8/1.45=4
I would think it to be A because 8/12 can be simplified into 3/4