Answer:
20.49 maybe?
Step-by-step explanation:
Four ratios:
light to dark: 4:12
dark to light: 12:4
black to white: 2:4
white to gray: 4:10
gray to white: 10:4
any of those work.
Commutative property is "a + b = b + a"
Therefore your answer is 1. 5 + 6 = 6 + 5
