Yes, Argentina is further west than the prime meridian (zero degrees latitude). The midpoint of Argentina is further west by approximately 2,356 miles (3,792km).
No, Argentina is not further east than the prime meridian (zero degrees latitude).
No, Argentina is not further north than the equator.
Yes, Argentina is further south than the equator. The midpoint of Argentina is further south by approximately 2,654 miles (4,271km).