Answer:
y=2/3x-3
Step-by-step explanation:
The form is y=mx+b.
m is the slope and
b is the y intercept
Answer:
They sold 120 milkshakes that day
Step-by-step explanation:
We can set up a proportion


Note: If you have some value,
, and it is
of the total amount, you can find the value by doing the equation 
It would be number 3 hope this helps!