please can someone explain to me how this is done the answer is 85 but how to figure it out I am giving away 10 points the question is one the image and the answer is 85 but just explain how it is done

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?

Is this a polynomial function? i need to know asap

Which number is located at point a on the number line? a number line is shown from negative 10 to 10 with each interval mark on the number line representing one unit. point a is labeled one interval mark to the right of negative 5.