@Iamnotawhale You’re correct. The ‘official’ answer to this question is wrong. The question clearly states that the first term of both sequences is 1. Your answer is correct. @admin Please correct the answer to this question!
@energizedpanda Yeah, you're absolutely right! It needs to specify that 1 is the 0th term in order for (3/2)^9 to be correct. I'll go ahead and report that now!