Use the polynomials f(x) = 3x2 – 1, g(x) = x + 2, and h(x) = –x2 – x to evaluate and simplify the given expressions. Determine the degree of the resulting polynomial.

Einstein office equipment has a rental plan for office machines. a fax machine that lists for $722.98 can be rented for 22% of the price annually. the state imposes a usage charge of 3.2%. if stephen hawking travel decides to rent the fax machine, what will its total monthly rental charge be?