Answer:
35
Step-by-step explanation:
Alright this is like a linear pair. All three angles add up to 180; so this is the set up:
40 + 2x + 30 + 40 = 180
2x + 110 = 180
2x = 70
x=35
For this case we have that by definition, the equation of the line of the slope-intersection form is given by:

Where:
m: It is the slope of the line
b: It is the cut-off point with the y axis
According to the statement data we have:

Then, the equation is of the form:

We substitute the given point and find "b":

Finally, the equation is of the form:

Answer:

The answer is 0.6666666666 but to simplify it you can put 0.6
It's litterally called a community service... funny huh?
The correct answer to the question that is being asked and presented above would be 'composite'. If there are two or more basic geometric figures combined, they form what is called a 'composite' figure.