Which of the following equations, together with the two equations below, will form a system of three equations such that there is only one value of x that satisfies all three equations?
7x = 6y
y = z +8

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.