plz question below 20 only answer with explanation

What is the rate for one gallon of gasoline

Select the conic section that represents the equation. 3x2 + 3y2 -2x + 4 = 0

Answer asap! show all work! find the number of complex roots, the possible number of real roots and the possible rational roots of the polynomial function. then, solve for all roots. x^3 + 2x^2 + 3x + 6 = 0