What quantity of 64% hydrochloric acid solution must be mixed with a 22% hydrochloric acid solution to produce 242.3 mL of 35% solution?

The volume of a cube is 8 in to the 3rd power. how long is each side?

Find the roots of the polynomial function f(x) = x^3 + 2x^2 + x

Thanh and her crew are building a stage in the shape of a trapezoid for an upcoming festival. the lengths of the parallel sides of the trapezoid are 14 ft and 24 ft. the height of the trapezoid is 12 ft.what is the area of the stage? enter your answer in the box. ft²