Help Due in 19 minutes.

8000 + 8800 + 8000 + 8 million + 80 trillion + another a katrillion equals

Which of the following contains a variable?

Select the correct answer from each drop-down menu. consider the following polynomials equations. 3x^2(x-1) and -3x^3+ 4x^2-2x+1 perform each operation and determine if the result is a polynomial. is the result of a + b a polynomial? yes or no is the result of a - b a polynomial? yes or no is the result of a · b a polynomial? yes or no