Based on the clue 'at its greatest extent the persian empire stretche...', what is the answer?

Based on the clue 'at its closest approach jupiter is 367 million mil...', what is the answer? Based on the clue 'at its closest this planet is just 286 million mil...', what is the answer? What is associated with: at its football games since 1904 this service academy has used a live goat mascot named bill? Based on the clue 'at its greatest enrollment the csmc which stood fo...', what is the answer? Based on the clue 'at its height it was known as the empire on which ...', what is the answer? What is associated with: at its inception in 1946 the cdc fought this mosquito borne disease that was prevalent in the… What is associated with: at its independence in 1957 the gold coast took the name of this medieval west african empire? Based on the clue 'at its mouth the gulf of sidra stretches 280 miles...', what is the answer?