N = 3. Add 10 to both sides. Add 4n to both sides. Divide 4 from both sides.
Percentage of sugar is : 2/12 = 0.166 rounds to 0.17 = 17%
The first thing we are going to do to graph our equation is solve them for

:
For our first equation:



For our second equation:


Now, we just need to use the graphing utility to graph our equations:


We can conclude that the graph of the equations is: