What are the coordinates

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

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

4. (10.03 mc) the equation of line cd is y = −2x − 2. write an equation of a line parallel to line cd in slope-intercept form that contains point (4, 5). (4 points) y = −2x + 13 y = negative 1 over 2 x + 7 y = negative 1 over 2 x + 3 − 2x − 3