How many pounds per gallon is equivalent to half a pound per quart?

To determine how many pounds per gallon is equivalent to half a pound per quart, it's important to understand the conversion between quarts and gallons.

There are four quarts in one gallon. Therefore, if you have half a pound in one quart, when you scale that up to a gallon, you would multiply the amount of pounds by four (because it takes four quarts to make a gallon).

Thus, half a pound per quart becomes:

[

\frac{1}{2} \text{ pound/quart} \times 4 \text{ quarts/gallon} = 2 \text{ pounds/gallon}

]

This calculation indicates that half a pound per quart is equivalent to two pounds per gallon, making it clear that the correct answer is not simply restating the half pound per quart, but rather showing the derived equivalent in pounds per gallon.