Dave uses the associative property of multiplication ro write an expression that is equivalent to 8×(5×b) which expression did he write a. 8b×5b

b. (5+b)×8

c. 8+(b×5)

e. (8×5)×b

2x + 1 < 5 solve the following inequality. then place the correct number in the box provided.

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.

Acontainer holds 0.7 liters of oil and vinegar. 3/4 of the mixture is vinegar. how many liters of oil are in the container? express your answer as both a fraction and a decimal.