Answer:
18....I hope thats righ
Step-by-step explanation:
We can compare by converting Johnny's reading time into the same unit of Jacky's, hours.
There are 60 minutes in an hour, so use this:

15 < 20, so Johnny read faster. This is 5 pages faster per hour than Jacky.
Answer: 
Step-by-step explanation:
Given: Distance traveled by Smith =
mile.
Time taken =
hour
Unit rate in miles per hour = ( Distance traveled by Smith) ÷ (Time taken)


Unit rate = 