Which expression is NOT equivalent to 12x + 18y?

What percent of the circle below is shaded?

When you dilate a figure with a scale factor of 1/2, what will the dilated figure look like?                                                                                           a: the dilated figure will have side lengths that are half the length of the original side lengths.                                                                          b: the angles in the dilated figure will be half the measure of the original figure.                                                                                c: the dilated figure will have side lengths twice the length of the original.

Find the slope of the line that passes through the points (0, 0) and (-2, -3). 2/3 3/2 -3/2