Answer:
C. Divide both sides of the equation by -2.
Step-by-step explanation:
The goal of the equation is to isolate x. In order to do that we have to remove the '-2' by doing the inverse operation. That is the opposite operation, for example addition and subtraction, multiplication and division.
Since x is being multiplied by -2, we do the inverse which is division.
Answer:

Step-by-step explanation:
Use the inverse cosine function.



Answer:
$172.80
Step-by-step explanation:
$160.00 x 1.08=$172.80
Answer:
The answer is B. (4) Because a coeffecient is the number next to the letter.