Answer:
y=-3
Step-by-step explanation:
5x+7y=-31
(-) 5x-9y+17
-----------------
16y=-48
------------
16 16
y=-3
Answer:
Mikhail is 42 years old
Step-by-step explanation:
42 drank iced tea
60 drank either water or lemonade
So the ratio would be 42:60 or 7/10 as a fraction.
So D is the correct answer