Answer:
Ali = 12, Sami = 21
Step-by-step explanation:
Ali = 4x, Sami = 7x
lets make an equation
7x-4x=15
3x=15
x=3
Now when we know x we can find how many candies each got
3*4=12, 3*7=21
-1
15x-8x-2=-9
Or, 7x=-9+2
Or, 7x=-7
Or, x=-7/7
Or, x =-1
B: Even
B is the answer