Answer:
Step-by-step explanation:
it will be B because you have to divved
The correct answer is

°.
To solve for

, you can start by finding the measures of the triangle's interior angles. Knowing that a straight line measures

°, you can subtract the given values from

° to find the measures of the respective supplementary interior angles. That would give you

°

and

°

.
Now, knowing that the measure of all the interior angles of a triangle is also

°, you can add the two interior angles you know

and subtract those from

°. Doing so would give you the measure of the missing third angle, which is

°.
Finally, because angle

is the supplementary angle of the missing angle from the previous step, simply subtract that angle's measure from

° to find

°, which is

or

°.
Solve for
:

Now if
, we have
and

On the other hand, if
, then
and

This is a horizontal line at y = -3. If you want to find it mathematically, you could find the slope (y2-y1)/(x2-x1) and you would get 0 over 5, so you know the slope is zero. Pick either point and substitute the numbers into point-slope formula. I went with (3, -3) and got (y - -3) = 0(x-3). The right side is just 0, and if you subtract three from both sides to isolate y, you get the equation y = -3.
The number would be .5 I'm pretty sure