A single-shelf bookcase can hold books that are a total of 24 feet wide. We need to store 19 books of the widths (in feet) listed in the file P06_90.xlsx. Develop a linear integer model to determine...

A single-shelf bookcase can hold books that are a total of 24 feet wide. We need to store 19 books of the widths (in feet) listed in the file P06_90.xlsx. Develop a linear integer model to determine the minimum number of bookcases that are needed to store all 19 books.