Since we know that all angles in a triangle add up to 
, we can solve for 
and substitute it back into 
to find 
.
Remove the parentheses and combine like terms.
Add 
to both sides of the equation.
Divide both sides of the equation by .
Now that we have the value of , we can substitute it back into to find .
It will be $15 dollars for 5 drinks
Answer:
The graph of 
is attached below.
Step-by-step explanation:
As the given function
Lets put some points to determine the graph.
Therefore, the graph of attached below.
<em>Keywords: absolute value</em>
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Y = 15 • 3x
Y = 15 • 3(-3)
Y = 15 • (-9)
Y = -135
