Suppose y varies directly with x. if y = -4 when x = 8, what is the equation of direct variation? complete the steps to write the equation of direct variation.1. start with the equation of direct variation y = kx.2. substitute in the given values for x and y to get3. solve fork to get4. write the direct variation equation with the value found for k. the equation is

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.

The amount of data left on the cell phone six gb for 81.5 gb of data is used how much data is available at the beginning of the cycle

Measure a and b and find their sum. how are the angles related?