If 3^x = 81 and 2^y = 32, what is x + y? A 7 B 8 C 9 D 10 ✓ Correct Answer: Option C 3^x = 81 = 3^4, so x = 4. 2^y = 32 = 2^5, so y = 5. x + y = 9. Practice GRE Exam Prep Quizzes → Browse All Questions Study Flashcards