Final answer:
To find out how many hours Heather would need to work to make $85 at the same rate, set up a proportion.
Step-by-step explanation:
To find out how many hours Heather would need to work to make $85 at the same rate, we can set up a proportion. Since Heather made $204 for 12 hours of work, we can write the proportion as:
$204 / 12 = $85 / x
By cross multiplying, we get:
$204 * x = $85 * 12
Dividing both sides by $204, we find that:
x = ($85 * 12) / $204 = 5
Therefore, Heather would need to work 5 hours to make $85 at the same rate.