Answer:
I think #2
Step-by-step explanation:
The answer is c because it’s not a or d and maybe not b so ye c
A straight line is 180°. 180°-135°=55°, so x=55°, which is an acute angle because it is less than 90°.
There can be no negative in a sqrt
so x+1 must be equal or greater then 0
x+1

0
x

-1
so all answers must be greater then or equal to -1
-1,0,1,2,3,4,5,6,7,8
(-1,infinity) is the domain