Un carpintero va a colocar un rodapié en una habitación rectangular de 6 m de ancho y con un perímetro menor de 30 m ,¿cuánto puede valer la longitud del cuarto?

Acable company claims that the average household pays $78 a month for a basic cable plan, but it could differ by as much as $20. write an absolute value inequality to determine the range of basic cable plan costs with this cable company. a. |x − 78| ≥ 20 b. |x − 20| ≥ 78 c. |x − 20| ≤ 78 d. |x − 78| ≤ 20