Rearrange the factors so that literal factors are arranged alphabetically and follow numerical factors:

$5w2t$

Which of the following algebraic expression are polynomials

$x^2-\frac{1}{x^2}+2$

Which of the following algebraic expression are polynomials

$\frac{3}{7}{x}^2-\frac{3}{7}{x}^2+3$

Which of the following algebraic expression are polynomials

$81x^2+4xy-9y^2-6$

Which of the following algebraic expression are polynomials

$\frac{2}{x}+\frac{3}{x^2}-4x^2-2x+3$

Which of the following algebraic expression are polynomials

$8x^3+7x^2-12x+4$

Which of the following algebraic expression are polynomials

$p^2+p^{2}q-\frac{4p}{q}+8$

Write down the degrees of the following polynomials

$ab+bc+ca$

Write down the degrees of the following polynomials

$2+p^2$