The sum of the roots of 8x² - 2x = 1 is:
-1/4
1/4
-1/8

Question 5 spring semester final exam math evaluate

Which one ? is the answer and how to find this answer

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?