I would say 20 because if you add the 10 with 10 the other shaded area so that is why i say 20
Divide the equation by six to get:
5+3=5+y
Subtract 5 from both sides to find that y=3.
The answer is D. (m-6)(m-8) hope this helped!
Do you mean 4 x 5=20 turns into 5 x 4=20 or do you mean like 6 x 7=42