Craig can paint his house in 20 hours. His friend David can paint the house in 48 hours. If David helps Craig paint his house, how long will it take them to do the job together?* *State your answer as a decimal. Round to the nearest thousandth.​

What is the solution of the systems of equations? y=2/3x+3 x=-2

Arecipe calls for 32 fluid ounces of heavy cream.how many 1 pint containers of heavy cream are needed to make the recipe?

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.