Probably most likely 1.25% because in the question it doesn't say there is any blue marbles.
Answer:
32%
Step-by-step explanation:
You can work this out by rearranging the equation and isolating the x.
4x + 12 = 36
4x = 36 - 12 (I moved the +12 to the other side, which means it becomes -12)
4x = 24 (36 - 12 = 24)
x = 24 / 4 (You need to isolate the x, and because it was being multiplied by 4, I divided both sides by 4 to leave me with just x)
x = 6 (24 divided by 4 is 6).
X= -1/3 (negative x-intercept)
x=4 (positive x-intercept)
