Chapter 4.2, Problem 27MS

Less than. You’ve tnangulated your polygon and assigned a color (red, blue, or yellow) to each vertex so that each triangle has all three colors appearing. Let r equal the number of red vertices, b equal the number of blue vertices, and y equal the number of yellow vertices. If $\text{r < 10, b < 8, and y < 12,}$ what’s the largest number of vertices the polygon can have?