30% of what number is 150? A. 500 B. 50 C. 45 D. 200

Evaluate the following expression 1/3^2

Aplot of land has been surveyed for a new housing development with borders ab, bc, dc, and da. the plot of land is a right trapezoid with a height of 60 feet and an opposite leg length of 65 feet

Find the volume of the solid bounded by the plane z=0 and the paraboloid z=1-x^2 –y^2