Based on the designs is there more than one value for x ? Explain how you know this

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?

The length of the line segment ac is 8x-9 what is the value of x

The sum of five and a number n is at least 12