Answer:
15y
Step-by-step explanation:
first the 2 can cancel:

turns into:

now since we need to find x-y,
x=16y
16y-y=15y
I might come back to this because I'm not 100% sure this is the answer you are looking for. Let me know if you have any questions.
Answer:
Step-by-step explanation:
7)Fraction of apple pie after eaten by Jeremy = 1 - (1/3) = 2/3
Fraction of pie eaten by Sara

8)

Fraction left = 