Equivalent fraction for 3(2x + 5) then write corresponding letter.​

Ineed to learn how to solve this problem

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?

If x = -2, then x 2-7x+10 equals a. 0 b.20 c.28