A triangles is 180 degrees. 100+50=150.
180-150=30
X=30
For this case we have the following equation:

We must solve the equation by following the steps below:
We subtract 1 from both sides of the equation:

On the right side of the equation we have that different signs are subtracted and the sign of the major is placed:

We add x to both sides of the equation:

We divide between 4 on both sides of the equation:

Thus, the correct option is option B
Answer:

Option B
12 fluid ounces of sweat an hour
Answer: <em>it will actually be -3, 7</em>