Juan va a comprar un libro antiguo que cuesta 120 dólares y encuentra que en la librería están ofreciendo una oferta. Primero le hacen una rebaja del 20% y luego otra del 5% sobre el precio reducido.

If you are just building your payment history, how many points from a perfect score will you possibly miss?

If m∠abc = 70°, what is m∠abd? justify your reasoning.  using the addition property of equality, 40 + 70 = 110, so m∠abd = 110°.  using the subtraction property of equality, 70 − 30 = 40, so m∠abd = 30°.  using the angle addition postulate, 40 + m∠abd = 70. so, m∠abd = 30° using the subtraction property of equality.  using the angle addition postulate, 40 + 70 = m∠abd. so, m∠abd = 110° using the addition property of equality.

What is the equation of the line that is parallel to the line with the equation y= -3/4x +1 and passes through the point (12,-12)