Answer:
3.75 miles must you raft each hour
Explanation:
Unit rate defined as the rates are expressed as a quantity 1 such as 4 miles per hour or 5 meter per seconds.
As per the given statement:
if a 2 day rafting trip covers a distance of 60 miles and you are expected to raft 8 hours each day.
In 1 day = 8 hours
then;
in 2 days = 16 hours.
We have to find the how many miles must you raft each hour.
in 16 hours rafting trip covers a distance of 60 miles.
by definition of unit rate;

Therefore, 3.75 miles must you raft each hour