Will give brainliest 9 qt. of a 20% acid solution was mixed
with 1 qt, of pure water. What is the
concentration of the mixture?

Is it true that product of 3 consecutive natural numbers is always divisible by 6? justifyyour answer

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)

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.