Let's assume that the price of crude oil is $37.00 per barrel. At 19.5 gallons of gasoline per barrel, this means that a gallon of gasoline in its crude oil form costs $1.90.
Johnny Tillotson is 77 years old (birthdate: April 20, 1939).
usage: till and until are both very old in the language and are interchangeable as both prepositions and conjunctions: It rained till (or until) nearly midnight. The savannah remained brown until (or till) the rains began. till is not a shortened form of until and is not spelled 'till. 'til is usu.