I thinks it’s 3 because 21-12=9 so you spent 9 dollars 9/3=3
Answer:
C)
Step-by-step explanation:
Use the Angle Addition Postulate to figure this out:
165° = (x + 15)° + (9x)°
165° = (15 + 10x)°
- 15° - 15°
_____________
[Plug this back into the modeled expression for the to get the angle measure of 30°];
I am joyous to assist you anytime.
9 times 5 equals 45 so yes