Evaluate each expression when a = -4 and b = 3

1.) ab
2.) 2a + 3b
2.) 2(a - b)​

Solve the equation -9p - 17 =10 a -3 b. 16 c. 18 d -16

Which of the following is the true for f(x) = 5cos

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.