## Thinking Mathematically (6th Edition)

$\frac{1}{4}, \frac{1}{2}, 1, 2, 4, 8$
Write the first six terms by multiplying by the common ratio $2$ to get the next term. We start at $1/4$. $\frac{1}{4}, \frac{2}{4} = \frac{1}{2}, \frac{2}{2} = 1, 2, 4, 8$