We calculate this by multiplying the number of cookies by the number of boxes:
28*14=(20+8)*14=280+80+32=360+32=392 (that's how I like to count it, there are also other methods)
so she has 392 cookies in common.
7. E
8.C
9. F
10.D
11.B
12.A
13.G
I think this is right
Y=2/3x-1 is the equation:)
