We can see that g(1) = f(4).
So g(x) = f(4*x)
k is 4
Yes, they are congruent. Congruent means that they are exactly equal in size and shape. The are both Right Triangles (you can tell by the 90 degree angle) and the lines on them are in the same spots, which means, line YZ is equal to line BC, and that line XZ is equal to line AC. I hope that helped! :)
Divide 25.7 by 141.

Now, multiply that with 100 percent to get the percentage.

18.22% is your answer! If the question wants you to round it to the nearest percent, the answer will be 18%.