Answer:
2 3/4 dozen cookies per hour
Explanation:
This is a fraction equal to
5.5 dozen ÷ 2 hours
We want a unit rate where
1 is in the denominator,
so we divide top and bottom by 2
5.5 dozen ÷ 2
2 hours ÷ 2
=
2.75 dozen
1 hour
=
2.75 dozen
hour
= 2.75 dozen per hour