Answer:
2.5 inches per hour
Step-by-step explanation:
divide the total by time
6 1/4
--------= 5/2
2 1/2
simplify 5/2 to 2.5
3 inches per hour
6 inches ÷ 2
------------------
2 hours ÷ 2
=
3 inches
-------------
1 hour
hour
