Fred's basement is flooded. The basement floor is
3.43.4
3.4
3, point, 4
meters below the ground floor. The water is
1.21.2
1.2
1, point, 2
meters high.
The following equation describes this situation.
\quad

−3.4+1.2=−2.2-3.4+1.2 = -2.2
−3.4+1.2=−2.2
minus, 3, point, 4, plus, 1, point, 2, equals, minus, 2, point, 2
What does
−2.2-2.2
−2.2
minus, 2, point, 2
tell us?

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.