It is based on powers of 10, making it logical.
Answer:
x = 15°
Step-by-step explanation:
These angles form a linear
4x - 17 + 137° = 180°
4x - 17 = 43°
4x = 60°
x = 15°
Answer:

Step-by-step explanation:
AC = AB + BC



Add 7 to both sides:


Subtract 7x from both sides:

Divide both sides by 11:


Answer:
45
Step-by-step explanation:
20 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 = 45
Answer:
3
Step-by-step explanation: