sometimes we can determine the number of solutions that a system of equations has by simply observing and drawing conclusions from the equations. this is called

The slope of a line is -1/2 . what is the slope of a line that is parallel to it? a. 1/2 b.2 c. -1/2 d. -2

How many sides does a regular polygon have if each exterior angle measures 72a.3b.4c.5d.6

After applying the composition r0.90 ry to rs what are the coordinates of r' and s'? a.r'(–3, 1),  s'(–3, 5)b.r'(–1, 3),  s'(–5, 3)c.r'(1, 3),  s'(5, 3)d.r'(5, 3),  s'(1, 3)