1.33333
Step-by-step explanation:
Don't worry it checks out.
If you could post the picture I can help
Answer:
7
Step-by-step explanation:
-9y-42x
Because they are like terms that is the lowest they can go
The equation that shows how the total number of cups of ice used, y, depends on the number of glasses filled, x, is 
<h3>
Linear function</h3>
Filling the cooler is an illustration of a linear function
A linear function is represented as: 
Where
- m represents the slope/rate
- b represents the y-intercept/the initial value
- x and y are the variables
<h3>The equations</h3>
By comparison, we have the following parameters
--- the amount of cups per ice
---- the initial amount of cup
So, the equation that represents this scenario is

Read more about linear functions at:
brainly.com/question/14323743