Aplica la propiedad fundamental de las proporciones para verificar si las siguientes razones forman una proporción. a) 12/60 y 2/3 c) 5/2 y 40/16 b) 5/4 y 25/20 d) 5/9 y 6/

An advertising firm has an old computer that can prepare a whole mailing in 6 hours. with the of newer model the job is complete in 2 hours. how long would it take the newer model to do the job alone?

Atriangle has a side lengths of 18cm, 80 cm and 81cm. classify it as acute obtuse or right?

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.