If x is an even integer and y is an odd integer than x + y is a rational number. a) always true b) sometimes true c) usually true d) never true

The measurement of one angle of a right triangle is 42° what is the measurement of the third angle? (there is no picture)

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

Norder to get a certain shade of blue paint, a mixer must have 5 parts white paint to 3 parts blue. if 4 gallons of paint must be mixed, how many gallons of white paint must be used?