Which expression gives the length of qr in the triangle shown below?

Iam a rectangle. my perimeter is 60 feet. how much are do i cover?

8. kelly wants to buy a magazine that is $25. later the magazine was marked up an additional 20%. what is the new price?

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.