Determine if the sequence below is arithmetic or geometric and determine the common difference/ ratio in simplest form 12 8 4

Find the simple interest earned to the nearest cent for each principal, interest rate, and time 735 7% and two and a half years

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.

Is the point (0, 8) on the x-axis or y-axis? how do you know?