Answer: No
Step-by-step explanation:

Replace x for 5 and -7 separately.


Answer:
2 one
Step-by-step explanation:
Answer:
129
Step-by-step explanation:
Answer:
im sorry this looks difficult
my homework is the same
Step-by-step explanation:
Answer:
a=45°
Step-by-step explanation:
It should equal to 360° so if u add 115+110+90, you get 315 and you subtract that from 360. 360-315= 45