Answer:
8,9
Step-by-step explanation:
(x +1) + 7=2x
x+8 = 2x
8=x
126°
(2x +18)° = (3x)°
2x + 18 = 3x
18 = 3x - 2x
18 = x
therefore, (3x)° = (3*18)°= (54)°
Books left=2000-200=1800
ATQ
Now
yx14
I don't know what you have to do but I'm trying to do my first answer srry