I think must be associative property
Your answer will be B 12.5% because there's one whole that equals 10 and the second box that has 2 and a half that's equals 2.5 and then you add them together...
10+2.5=12.5
So your answer is B 12.5.
Answer:
b
52x + 20 + 52y
Step-by-step explanation: