15=0.5x+7
0.5x=12
X=24
His weekly allowance is $24
Just divide 216 by 8. 216÷8=27.
8 times

= 216
Angle C equals 63
Add angle 17 plus 100 and the subtract the answer from 180. Because a triangles are always 180 degrees
Answer:
False
Step-by-step explanation:
x
The opposite of x is -x
x* -x = -x^2
This is not always 1