Solution
Step 1:
[tex]Drink\text{ per person on hike = }\frac{7}{8}\text{ gallon}[/tex]Step 2:
[tex]Total\text{ number of people on hike = 5}[/tex]Step 3:
[tex]\begin{gathered} Number\text{ of gallons needed by the 5 people } \\ \text{= 5 }\times\text{ }\frac{7}{8} \\ =\text{ }\frac{35}{8}\text{ gallons} \end{gathered}[/tex]