Maggie = x years old
Demarco = x + 4
Anna = 3*Demarco
Anna = 3*(x + 4)
Anna = 3x + 12
Hope this helps!
# shared / # being shared = 5/6 Each sister gets 5/6 of a pizza.

this is the answer, its pretty simple. I'm not sure the mathematical procedures but if you plug in 7 you get 49. Then all you got to do is subtract by 7, because the question states the number is the same. So basically,
The correct answer is 42.
5 • 8 = 40
40 + 2 = 42