1 a-2a-{3a-(4a-5)} i need help plz and on this one to
13(5-t)-(5-t)-12(5-t)

The fence around a quadrilateral-shaped pasture is 3a^2+15a+9 long. three sides of the fence have the following lengths: 5a, 10a-2, a^2-7. what is the length of the fourth side of the fence?

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?

Rewrite the following quadratic functions in intercept or factored form. show your work. f(x) = 3x^2 - 12