** ATTENTION ** HELP PLEASE (Will give brainlist)

Which of the following equations demonstrate that the set of polynomials is not closed under the certain operations?

A. Multiplication. (3x^4+x^3)(-2x^4+x^3)=-6x^8+x^7+x^6

B. Addition: (3x^4+x^3)+(-2x^4+x^2x^4+2x^2

C. Division: (x^2+2x_+(x+1)=x+x/x+1

D. Multiplication: (x^2+2x)(x+1)=x^3+3x^2+2x

#1-20 state whether the angles are alternate interior, alternate exterior, vertical, or corresponding angles.

Credit card a offers an introductory apr of 3.4% for the first three months and standard apr of 15.7% thereafter,

Sample response: if the graph passes the horizontaline test, then the function is one to one. functions that are one to one have inverses that a therefore, the inverse is a hinction compare your response to the sample response above. what did you include in your explanation? a reference to the horizontal-line test d a statement that the function is one-to-one the conclusion that the inverse is a function done