Answer
20.99
Work Step by Step
Using the rules of logarithms, we find:
$$(1.014)^{3t}=2.4 \\ t=\frac{1}{3}log_{1.014}(2.4)\\ t=20.99$$
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.