PLEASE A(x) = x^2 -9 / x^2-6x+9

B(x) = x^2+3x+2 / x^2+x-2

C(x) = x^5 - x^3 / 2x^3+4x^2-6x

D(x) = x^4-4x^3+4x^2 / 4x^3+16x^2

If x=-3 is the only x-intercept of the graph of a quadratic equation, which statement best discribes the discriminant of the equation?

Agreeting card company can produce a box of cards for $7.50. if the initial investment by the company was $50,000, how many boxes of cards must be produced before the average cost per box falls to $10.50?

Can someone me do math because i am having a breakdown rn because i don’t get it