What is the sum of 4 2/4 + 7 4/5 ?
the space between fractions is because there are whole numbers 4 and 7

During the election for class president, 40% of the students voted for kellen, and 60% of the students voted for robbie. 500 students voted in total. how many more students voted for robbie than for kellen? answer with work : )

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

Simplify 1/3 12x - 6 a. -2x-1 b.-2x-8 c.-x+4 d.3x+10 e. 4x-2