Lenny buys four items in a store for a total price of $45.50. There is a sale and all of the items are discounted 20%.
Afterwards, there is a sales tax of 5%.
What is the final price of all of the items?

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