I believe I have solved this circuit correctly. Each loop and node satisfies KVL and KCL, respectively. All I was given was Vg=528V. The question is as follows: "Find the power delivered by the dependent voltage source." Currently my answer is 80V*21.6A=1728W, but I want to be sure because I need to get it right. Here's the thing! My teacher said 'if the dependent voltage comes out to be negative (opposite in polarity to what is shown in the circuit), in that case you must include a negative sign in your answer for the power delivered by the voltage source'. This note from my teacher is making me doubt myself. If I flip the direction of every current then the circuit still works, right? That would cause the dependent source to have a negative value and the power in my final answer would become negative too. I don't know which one it is or how to be sure.