The answer is

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Remember to combine like terms.
Hop this helps. c:</span></span>
Answer:


Step-by-step explanation:
Given [Missing from the question]
Equation:

Interval:


Required
Determine the values of 
The given expression:

... shows that the value of
is positive
The cosine of an angle has positive values in the first and the fourth quadrants.
So, we have:

Take arccos of both sides

--- In the first quadrant
In the fourth quadrant, the value is:


So, the values of
in degrees are:

Convert to radians (Multiply both angles by
)
So, we have:




Answer:
12-8x
Step-by-step explanation:
18-2x(4+3) =
18 -8x -6 =
12 -8x
the answer will be C. (4,2)