What is the square of 12?

Lindsay used two points, (x,y; ) and (+2.82), to find the equation of the line, y = mx + b, that passes through the points. y2-y, first, she used the definition of slope and determined that the value of mis x, - . given this information, which expression must represent the value of b?

Is the power produced directly proportional to the wind speed, give reasons for your answer?

Plz hurry evaluate the expression a+b where a=8 and b=19