Answer:
angle 8= 120 degrees
angle 7= 60 degress
Step-by-step explanation:
So since it's a line, they will equal 180. So since angle 7 is half of 8 we need to a pair of numbers that add to 180. So you can find out that 120/2 is 60. Then 60+120=180
Please see attachment
If it 23x - 4=65 then it x=3, but if it 23x(-4)=65 then it x=−0.707
