The greatest common factor of 15u2v3, 20u5v2, and 45u3v5

Can someone answer it, and plot it, for 20 points and brainliest answer? p. s. they're the same ! : )

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?

Which expression is a factor of 12x2 + 29x – 8? x – 8 2x – 1 3x + 8 4x + 1