What is an equation of the line that passes through(4,8) and is perpendicular to the line 2x-y=7

What is the prime factorization of 195

At the newest animated movie, for every 9 children, there are 4 adults. there are a total of 39 children and adults at the movie.

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?