Answer:
Cade is not right because in his second step he did 6^2 + b^2 = 9^2. In this problem, you are trying to find the hypotenuse, which is c^2. B^2 is the other leg, but this problem has given the lengths of both the legs. If he did it correct the second step would look like 6^2 + 9^2 = c^2.
Tyce is right since he followed all the steps and did the math correctly :)
Explanation: