Can somebody please help me with this question!

Perry observes the opposite parallel walls of a room in how many lines do the plains containing the walls intersect

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.

The population in a city is modeled by the equation p(d)= 100,000*(1+0.3) where d is the number of decades since 1970