Solve the problem.The amount of particulate matter left in solution during a filtering process is given by the equation P = 1000(2)-0.4n, where n is the number of filtering steps. Find the amounts left for  and  (Round to the nearest whole number.)

A. 1000; 250
B. 2000; 250
C. 1000; 31
D. 1000; 4000


Answer: A

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