What is the diameter of a circle of area 3850 m square

100 points, hi, i’m not sure how to get the equation from the graph and table.

Sanya noticed that the temperature was falling at a steady rate of 1.4 degrees every hour from the time that she first checked her outdoor thermometer. by 6 a.m., the temperature had fallen 21 degrees. which expression can you use to find how many hours earlier she had first checked the thermometer?

What is the result of adding the system of equations? 2x+y=4 3x-y=6