This is really easy, because 8m is 200% you have to divide it in half to figure out the 100% which is 4... now you have to find the 75%. all you have to do is divide 4 by 25% which is 3.
Answer: x = 106.5
<u>Step-by-step explanation:</u>
You can use either sin or cos. I will use cos.

First, add -7 to both sides of the equation:

Dividing by 9 gets us:

The answer is x = 0.
Could you please put the picture? what type of angle are we talking bout or figure please and thank you!