depends on how it is used. Earth coordinates would be given in at least two numbers - one for latitude and one for longitude. Additionally, each number is usually given in "Degrees, minutes and seconds" such as Lat: 36 13.50 (North), Long: -115 24.59 (West.)
There are 180 degrees of latitude between 45 and 40 degrees east longitude. However, if you meant how many degrees of longitude are there, there are 5 degrees of longitude between 45 and 40 degrees east longitude.
"45 degrees south" is a latitude.
Atlantic
45 degrees latitude and 59 degrees longitude
Somalia.
Baker, Oregon
The thirteen colonies are located in what is now the eastern United States. The latitude and longitude of this area ranges from approximately 32 to 45 degrees latitude and -71 to -80 degrees longitude.
Pensacola Mts.
Madagascar
It is 45 degrees north and 5 degrees east.
South Dakota
Romania