Which of the following represents the sum 3+(-7)? assume that red tiles represent negative numbers and blue tiles represent positive numbers. three blue tiles plus seven red tiles three red tiles plus seven red tiles three blue tiles plus seven blue tiles three red tiles plus seven blue tiles

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.