Ppl who are smart in inequalities will think this is easy. Please look at the screenshot below!

Which expression is equivalent to 2x^2+7x+4?

What is the area of triangle abc if a = 8, b = 11, and c = 15?

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.