Answer:
42%
Step-by-step explanation:
To find the percentage of a fraction, you divide the numerator by the denominator and multiply by 100:

Hello!
As you can see, 3x+9 makes a right angle, or 90 degrees. We can turn this into an equation and solve for x.
3x+9=90
First we subtract 9 from both sides.
3x=81
Then divide both sides by 3.
x=27
Therefore, x=27.
I hope this helps!
F(x)=0 has an infinite number of solutions because every input will always have an output of 0, meaning the slope is also 0, also meaning y-intercept is 0.