What you can do is count all the shapes the put the number of blue with that into a fraction. Lets say that there are 24 shapes and 15 are blue the fraction would be 15/25
Hope this helped. If you post a pic I can help you more.
F(x) = x (x^3 - x^2 + x + 1)
100 times, because 5 times 100 equals 500