WIth bolt patterns, are 5x5.5 and 5 x150 different? How so? I'm starting to get very confused.?

Question

wheel, bolt pattern, tire, truck

Answer 1

5 x150mm = 5 bolt x 5.9" dia. bolt circle.

5 x 5.5 = 5 bolt x 5.5" dia bolt circle.

Answer 2

5.5 refers to inches while 150 refers to millimetres.  

They are not the same however ( 1" = 25.4 mm ) so 5.5 is 139.7 mm

Answer 3

They are not the same, they both have 5 lugs, but the spacing is differemt, the 5x150mm is a 5x5.9in, way bigger than 5x5.5. Not only that,  the back spacing is probably different too on the rim, They are nothing alike