Answer:

Step-by-step
explanation
explanation is attached to the picture
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Answer:
180
Step-by-step explanation:
100+82=182-2=180
Answer:
The equations represent circles that result in the same graph.
Step-by-step explanation:
we have

Divide by -10 both sides
-----> equation A
This is the equation of a circle centered at origin with radius 
and
Divide by 5 both sides
-----> equation B
This is the equation of a circle centered at origin with radius 
equation A and equation B are equal
therefore
The system has infinite solutions, because the equations represent circles that result in the same graph.
She will spend 112.8
24 times 4.70 equals 112.8