I think its 2c and 9d. I am not completely sure but i hope this helps.
Answer:
The measure of angle S is 60°
Step-by-step explanation:
This is an equilateral triangle, which means that all sides and all angles are equal. Hence, in order for all the angles to equal 180°, they each have to equal 60°
I can't factor that.
Is the equation input correctly?
Answer:
No
Step-by-step explanation:
It is a solution to the first equation, but not the second equation.
-7 on both sides than divide by -1
X=18