Make x the subject of

W= y+x/y

Really need on these. i have no idea what to do

Which of the following answers is 5/25 simplified? 1/5 5/5 2/5 1/25

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?