I want to say it is savings but I can be wrong. But I believe it is savings.
Answer:
x= -8
Step-by-step explanation:
1/2x + 13=9
- move 13 to the other side
1/2x= 9-13
-simply 9-13
1/2x= -4
-multiply 2 on both sides
1x=-8
x=-8
Answer:
x=15
Step-by-step explanation:
x+165degrees=180degrees
x=180-165
x=15
Answer:
±4
Step-by-step explanation:
The margin of error in a confidence interval is half the range:
(84 - 76) / 2 = 4
So the margin of error is ±4.
It's 3/4, simple enough just do delta y over delta x