## Thinking Mathematically (6th Edition)

$\frac{1}{2}, 1, 2, 4, 8, 16$
Write the first six terms by multiplying by the common ratio $2$ to get the next term. The problem tells us that we start at 1/2. $\frac{1}{2}, \frac{2}{2} = 1, 2, 4, 8, 16$