Answer
$Q=0.3(2.0138)^t$
Work Step by Step
Recall the property $(a^m)^n=a^{mn}$. The equation can be rewritten as $$Q=0.3(e^{0.7})^t ~~~~(1)$$
Evaluating $e^{0.7}$ yields $2.0138$.
Therefore, equation (1) can be written as $Q=0.3(2.0138)^t$.