The following steps are used to rewrite the polynomial expression 3(x+4y) + 5(2x-y) in 4 steps?

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?

If the scale factor between two circles is 2x/5y what is the ratio of their areas?