Heather has the equation y = 2·3x + 1. she wants to graph a function that represents exponential decay. what should she change in her equation? a) change the 2 to a 1 2 b) change the 3 to a 1 3 c) change the + 1 to a - 1 d) change the x to a 2

After two years, how much has been paid into interest?

Atemperature of 1.64◦f corresponds to answer in units of ◦c.

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.