Pollution levels in Lake Erie have been modeled by the equation , where x is the volume of pollutants (in cubic kilometers) and t is the time (in years) (Adapted from R. H. Rainey, Science 155 (1967), 1242-1243). Find the initial pollution level; that is, find x when t=0. A) 0.23 km³ B) 0.2 km³ C) 0.40 km³ D) 0.10 km³ E) 0.8 km³

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The Answer of Pollution levels in Lake Erie have been modeled by the equation , where x is the volume of pollutants (in cubic kilometers) and t is the time (in years) (Adapted from R. H. Rainey, Science 155 (1967), 1242-1243). Find the initial pollution level; that is, find x when t=0. A) 0.23 km³ B) 0.2 km³ C) 0.40 km³ D) 0.10 km³ E) 0.8 km³

Pollution Levels in Lake Erie Have Been Modeled by the Equation