9x-5, I guess, not sure, but I'm combining like terms. Hope it's right.
Answer:
v
Step-by-step explanation:
I believe that the correct answer is 72
Hope this helps!<3
The slope intercept form is 
Explanation:
The equation is 
Now, we shall bring the equation
in the slope intercept form.
The general form of the slope intercept is given by

Hence, we need to rewrite the given equation in this form.
Thus, we have,

Subtracting both sides of the equation by 5x, we get,

Multiplying both sides of the equation by (-), we get,

Thus, the slope intercept form of the given equation is 
Hello,
We see that there is the ratio
2:3:4, which let us to conclude the ratio between the shortest and longest side is 2:4 or 1:2, so the longest side is two times bigger than the smallest.
To find the longest side:
12×2=24 cm. As a result, the length of the longest side is 24 cm. Hope it help!