<em><u>The equation shows the relationship between her weekly salary (w), hours per week (h), and rate per hour (r) is:</u></em>

<em><u>Solution:</u></em>
Given that,
Alice earned $12 per hour
1 hour = $ 12
<em><u>Find the number of hours in 1 week</u></em>
1 day = 24 hours
1 week = 7 days
Therefore,
1 week = 7 x 24 = 168 hours
Let "h" be the hours per week
let "r" be the rate per hour
Let "w" be the rate per hour
From given,
r = $ 12
h = 168 hours
weekly salary = hours per week x rate per hour


Thus, she earns $ 2016 for 1 week
The best answer is:
C) <span>a choice that must be made due to scarcity.
A tradeoff occurs when you must choose between two or more things, selecting the best option given the constraints. Choosing what to spend your allowance on, for example, is involves a trade-off that you must make due to the scarcity of your allowance money (you don't have unlimited money). D is a tempting answer, but it does not define trade-off as well as C. </span>
The answer is fales hope i helped