a^2+b^2+c^2 / a^-2*b^-2+b^-2*c^-2+c^-2*a^-2guys tomorrow is my exam and i am stuck in this questionpleasee helpp ASAP.

Given f(x)=2x^2-8x+6 and g(x)=3x-1 find f(x) +g(x) a. 2x^2+5x+5 b.2x^2-11x+7 c. 2x^2-5x+5 d.2x^2-5x-5

Arestaurant offers a $12 dinner special that has 5 choices for an appetizer, 12 choices for an entrée, and 4 choices for a dessert. how many different meals are available when you select an appetizer, an entrée, and a dessert? a meal can be chosen in nothing ways. (type a whole number.)

Evaluate cos2θ for cosθ = square root of 3/2