Answer:
x=5 y=8
Step-by-step explanation:
-3*5+7*8=41
5*5+2*8=41
Machine B is the faster machine because it packs 4 cartons in an hour while the other machine takes 5 hours to pack 4 cartons. The faster machine can pack 4 cartons in an hour.
(a + c) + 7
hope this helps
