Answer:
Step-by-step explanation:

Answer:
It would be (1,-1)
Step-by-step explanation:
Hello!
Answer: 
Step-by-step explanation:

Multiply by 3 from both sides of the equation.

Refine.

Add by 2 from both sides of the equation.

Simplify.

Divide by 21 from both sides of the equation.

Simplify.

Hope this helps!
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-Charlie
80, 80, 80, 80, 80, 85, 85, 85, 85, 85, 90, 90, 90, 90, 90
Mean = 85
Median = 85
Range = 10
Mean Absolute Deviation (MAD) = 3.33
It should be C can u help me with one i posted????