Astudent is attempting to solve a multi-step equation. sample mathematical work is shown below. which statement best applies to the sample mathematical work? a. the student incorrectly divided both sides by 35. b. the student incorrectly added 10 to both sides. c. the final answer is not reduced or simplified. d. the mathematical work shown is correct.

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.

Which of the following is missing in the explicit formula for the compound interest geometric sequence below?

Asmall book publisher knows that 26 books weigh 41 lbs. how much do 40 books weigh?