Answer:
8$ per hour
Explanation:
This is a fraction equal to
68 $ ÷ 8.5 hours
We want a unit rate where
1 is in the denominator,
so we divide top and bottom by 8.5
68 $ ÷ 8.5
= ------------
8.5 hours ÷ 8.5
= 8 $
--------
1 hour
= 8 $
-------
hour
= 8 $ per hour