What is the differecne of the following polynomials? (6x^2 - 3x^3) - (2x^3 + 4x^2 -5)

Plz which expression is equivalent to the expression below?

Adrawer contains 12 identical white socks, 18 identical black socks and 14 identical brown socks. what is the least number of socks you must choose, without looking, to be certain that you have chosen two socks of the same colour?

Rosy waxes 2/3 of her car with 1/4 bottle of car wax. at this rate, what fraction of the bottle of car wax will rosey use to wax her entire car