PLEASE SOLVE FAST. 20 POITNS AND PLEASE SAY WHAT SQUARED IT IS AND SOLVE IT CORRECTLY (cm, cm2, cm3) THANKS

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?

Polygon abcde is reflected to produce polygon a′b′c′d′e′. what is the equation for the line of reflection?

If (x + 8) is a factor of f(x), which of the following must be true? both x = –8 and x = 8 are roots of f(x). neither x = –8 nor x = 8 is a root of f(x). f(–8) = 0 f(8) = 0