Your plumber charges a flat rate of $150.00 to come out to your house and $55.50 per hour he is there. if the bill for your broken pipes was $344.25 how many hours was he there?

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