100 POINTS
1. How many phone numbers were possible in the state of Georgia before 1954? (disregard rules 2 and 3)
2. Today, how many phone numbers are possible in the Atlanta metropolitan area? (disregard rules 2 and 3)
3. Using all of the restrictions above, how many 7 digit numbers are possible in a single area code?
4. How many 10-digit numbers are restricted in the Atlanta area?
