Which polynomial is in standard form? 1+2x-8^2+6x^3 2x^2+6x^3-9x+12 6x^3+5x-3x^2+2 2x^3+4x^2-7x+5

You receive 15% of the profit from a car wash how much money do you receive from a profit of 300

At a kentucky friend chicken, a survey showed 2/3 of all people preferred skinless chicken over the regular chicken. if 2,400 people responded to the survey, how many people preferred regular chicken?

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?