sat-dog

Choice B is correct. It’s given that $1 \text{yard}=36 \text{inches}$. Therefore, $612$ inches is equivalent to $612 \text{inches}\left(\frac{1 \text{yard}}{36 \text{inches}}\right)$, which can be rewritten as $\frac{612 \text{yards}}{36}$, or $17$ yards.

Choice A is incorrect. This is the number of yards that are equivalent to $2.124$ inches.

Choice C is incorrect. This is the number of yards that are equivalent to $\mathrm{20,736}$ inches.

Choice D is incorrect. This is the number of yards that are equivalent to $\mathrm{793,152}$ inches.