Which of the following are polynomials? (Select all that apply)A1x2+5x − 12\frac{1}{x^{2}}+5x\ -\ 12x21​+5x − 12Bx−2 + 23x −99x^{-2}\ +\ 23x\ -99x−2+ 23x −99C12x2 +7x + 4\frac{1}{2}x^{2}\ +7x\ +\ 421​x2+7x + 4D5x2 − 12x5x^{2}\ -\ 12x5x2− 12x

Which progressive reform was least related to the causes and effects of world war i? o legislation limiting the use of child labor o establishing 8-hour workdays for railroad workers o reducing tariffs on imported goods o expanding women's rights and the right to vote

What are the similarities and differences between byzantine empire and kiev russia

Andreus vesalius is known for being the first scientist to provide detailed and accurate