Answer:
x= 55
Step-by-step explanation:
The two angles add to 180 degrees since they form a straight line
2x+70 =180
Subtract 70 from each side
2x+70-70=180-70
2x= 110
Divide by 2
2x/2 = 110/2
x= 55
Answer:
but what we doo in this ur ques is half
We have that the unit rate is 2 [Option B].
***Explanation***
We have that a proportional relationship is characterized for having the form:

Here a and b are the values that are proportional to one another and k is the constant of proportionality.
In our case we are given:

Here x & y are the proportional values and 2 is the constant of proportionality.
And, from properties of division, we have that: