Multiple choice general knowledge math & puzzles Given that 2^x = 7, and 2^y = 38, find 2^(x + y). Cannot be determined 45 266 2^45 Reveal answer Fill a bubble to check yourself C Correct answer Explanation Using the exponent rule 2^(x + y) = 2^x * 2^y, we substitute the given values: 7 * 38 = 266. The other options are incorrect applications of algebraic rules.