Help me solve and show work please

Ling listed all of the factors of a mystery number: 1,2,4,8,16,32 what is the mystery number?

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

Im so bad at fractions they are not my best math thing to work on