Question 594069
Hello, 
The equation that we use is:
Rate = distance/time
First lets convert 45 minutes in 3/4 of an hour
Plug in the data to get:
56=d/3/4
This can be rewritten as:
56=4d/3
Solve by multiplying 3/4 to both sides:
56(3/4)=d
Multiply out: 
Distance = 42 miles were traveled.
Make sense?
RJ
www.math-unlock.com