Answer
$1,600 \text{ gal}$
Work Step by Step
Convert by multiplying $\dfrac{200 \text{ gal}}{1 \text{ yd}^3}$ to obtain:
$=\require{cancel}
8 \cancel{\text{ yd}^3} \cdot \dfrac{200\text{ gal}}{1 \cancel{\text{ yd}^3}}
\\=8(200) \text{ gal}
\\=1,600 \text{ gal}$
