Click and drag like terms onto each other to simplify fully. -3y^{3}−3y 3 -7y^{2}−7y 2 -2y^{2}−2y 2 -5y^{3}−5y 3 -7x^{3}−7x 3 +y^{2}+y 2 help me please :c

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.