The simplest interpretation would go a little something like this:
We know that we want the total donation amount to be more than $7,900, so we can set up this inequality to begin with

Where
D is the total donations raised (in dollars). How do we find D? Well, we just add up the total number of table reservations sold and the total number of single tickets sold. If we let
r stand for the number of reservation tickets and
s stand for the number of single tickets, then we have

So, the inequality representing this situation would be

And that would probably be fine for this problem.
<span><em>Footnote:</em>
</span>Of course, if this were a real-life scenario, we'd need to take some additional details into account: How many tables do we have? How many people can be seated at each table?
The volume formula of a cylinder is :

From the problem, the volume is 1 m^3 and the height is 0.6 m.
Substitute the given to the formula :

Take the square root of both sides of the equation :
![\begin{gathered} r^2=0.53 \\ r=\sqrt[]{0.53} \\ r=0.728 \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20r%5E2%3D0.53%20%5C%5C%20r%3D%5Csqrt%5B%5D%7B0.53%7D%20%5C%5C%20r%3D0.728%20%5Cend%7Bgathered%7D)
The answer is r = 0.728 m
Use the equation A=(1/2)bh
Replace b with 7
Replace h with 12
A=(1/2)(7)(12)
A=(1/2)(84)
A=42
To put a slope-intercept into standard form, you have to first cancel out the fractions. So:

Turns into:

Simplify:

Distribute:

Since you want to get x and y on the same side, you subtract 12x from both sides to get:

So, your answer is
C. Hope this all made sense! If it doesn't you know where to get a hold of me, so just dm me. Or if you more problems.
I would tell them to try their hardest and to not give up hen it seems hard. Also I would tell them that if they need help they can ask for help from their teacher, parents, or friends if they do not understand what they are learning.
Hope this helped