Answer:
d
Step-by-step explanation:
Answer:
x=40 degrees
Step-by-step explanation:
there is 180 degrees in half a circle,and 180-100=80
and because there are 2 x values on either side you divide that 80 by 2 which gives you 40.
Answer:

that is the required inequality
If it’s a negative slope A, if it’s a positive slope B