How do I write 2x + in fuction notation ?

The highest common factor of 132 and 220

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

Ametal rod needs to be 9 feet and 5.5 inches in length. the sections of the poles being used are each 1 foot and 10.5 inches long. how many 1ft 10.5in sections would be needed to complete the 9ft 5.5in metal rod? and how many inches of material will be left?