Is 5/8a rational number

The equation of a parabola is given. y=18x2+4x+20 what are the coordinates of the focus of the parabola?

The volume of a rectangular prism is found by multiplying the length, width, and height of the prism. a rectangular prism has a width of 5x^2units, a length of 7x^3 units and a height of 2x^4 units. which is the volume of the prism in terms of x?

Of the 50 us states 4 have names that start with the letter w