Hello everyone! My question is twofold. Firstly, how do I solve for term numbers in a geometric sequence and secondly, how do I algebraically solve for variables that are exponents? 1. The problem statement, all variables and given/known data Given the following geometric sequences, determine the number of terms, n. t1=5 r (common ratio)=3 tn=135 2. Relevant equations tn=t1rn-1 where t1 is the first term n is the number of terms r is the common ratio tn is the general term 3. The attempt at a solution I substituted in all known values yielding 135=(5)(3)n-1, which I simplified to 27=(3)n-1, leaving me stuck at the exponent variable. From here, how do I algebraically solve for the variable? Thanks!