To find out by how many degrees the low temperature in Georgia (53 degrees F) is higher than the average low temperature in the U.S. (50 degrees F), you can subtract the average low temperature in the U.S. from the temperature in Georgia:
53 degrees F (Georgia) - 50 degrees F (average U.S.) = 3 degrees F
Therefore, the low temperature in Georgia is higher by 3 degrees F.
The correct answer is 3.