2n + n/9 = 9

What is n?

[ the equation is in the box I drew]

n = 27

Step-by-step explanation:

(2n + 9) / 9 = 9

multiply both sides by 9

3n = 81

/3      /3

n = 27

A

Step-by-step explanation:

Assuming that items are on the x axis and revenue is on the y axis we can predict that for every 1 item produced the revenue is $3.

Technically speaking you can write the coordinate point as:

(1 item, 3 dollars in revenue)

Therefore, letter A would be correct.

I hope this helps!!

- Kay :)