Answer
$(0.9802)^t$
Work Step by Step
Recall the property $(a^m)^n=a^{mn}$, so the equation can be rewritten as $$Q=(e^{-0.02})^t ~~~~(1)$$
Evaluating $e^{-0.02}$ yields $0.9802$.
Therefore, the equation (1) can be written as $Q=(0.9802)^t$