What are the leading coefficient and degree of the polynomial? 2u + 7 - 18u^7 + 8u^2

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.

Mr. walker is looking at the fundraiser totals for the last five years , how does the mean of the totals compare to the median?

Adeposit of 5500 at 6% for 3 years equals