On the road, a bike sign in the shape of an isosceles trapezoid is to be painted. the sign and its dimensions are shown below. what is the area of the sign? 11 square feet 15 square feet 18 square feet 24 square feet

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.