Tell whether the two figures are similar

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

What is the value of x in the equation 1.5x+4-3=4.5(x-2)?

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.