Answer:
3.5 boxes
Explanation:
If that is what it takes to install shingles on 1/4 of the roof then we would need to multiply this amount by 4 to find out how many boxes it would take to complete the entire roof, since 4 times 1/4 would equal 4/4 which represents the entire roof.
7/8 * 4 = 3.5 boxes of nails
Finally, after completing this calculation we can see that it would take the company 3.5 of 50 pound box of nails to complete the entire roof, that would mean a total of
3.5 * 50 = 175 pounds of nails
