Answer:

Step-by-step explanation:
The angle on a straight line is always 180 degrees.
Thus,

Remove the brackets:


Subtract 24 from both sides:


Divide both sides by 12:


Answer:(4) right angle
Step-by-step explanation:
you need to get 180 right solve it from there
Answer:
3.5
Step-by-step explanation:
Answer:
C. Between 4 and 5.......
Answer:
Option 4
Step-by-step explanation:
You divide 1/2 by the whole problem
5x-15=20
and go from there its too long to explain but its option 4