Answer the problem 19-6 + 12 = 19 - 18 =

The border line of the linear inequality 4x + 7y < 5 is dotted true or false?

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?

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.