Can someone me solve dis up to 12 pls will mark *brainiest* : ) #

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?

This is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 5 terms.

Pls math have no ideamultiply and simppify. 2x^2y^3z^2 • 4xy^4x^2