Answer:
C. 8/5
Explanation:
Trevor swims 1/2 lap in 4/5 minute.
To determine how many minutes it takes Trevor to swim each lap we find the unit rate.
[tex]\begin{gathered} \text{Unit Rate=Number of Minutes}\div\text{Number of Laps} \\ =\frac{4}{5}\div\frac{1}{2} \\ =\frac{4}{5}\times\frac{2}{1} \\ =\frac{8}{5}\text{ Minutes per Lap} \end{gathered}[/tex]The correct choice is C.