It diverges; it does not have a sum. the sum of a geometric series is given by a /(1-r) where a is the first term and the r is the ratio between the terms. r=3 in the series you have given . The absolute value of r must be less then 1 for a geometric series to converge.
Is this problem is about solving for h? If it is, here is the answer:
Ok the w to your question is to cross multiply <span>216=9m
m=24
</span>
It’s 22/3 I think so that’s the answer
