If 5(x+7)= 3, then 5x + 35 = 3 . what's the property for that?

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?

What’s the answer ? use the picture to see the problem

The median for the given set of six ordered data values is 29.5 9 12 25 __ 41 48 what is the missing value?