ANSWER
0.456 miles
Step-by-step explanation
Lauren runs 40 feet in one minute.
To find the amount of miles she runs in one hour, we have to first find how many miles she ran in one minute.
This means that we will convert 40 feet to miles:
1 foot = 0.000189 mile
=> 40 feet = 0.000189 * 40 = 0.0076 mile
This means that she runs 0.0076 mile per minute.
There are 60 minutes in one hour.
Therefore, the number of miles she can run in 1 hour (60 minutes) is:
60 * 0.0076 = 0.456 miles
Lauren can run 0.456 miles in one hour.