Solve the Problem $$P = 900 ( 2 ) ^ { - 0.8 n }$$

Multiple Choice

Solve the problem.
-The amount of particulate matter left in solution during a filtering process decreases by the equation $$P = 900 ( 2 ) ^ { - 0.8 n }$$ where n is the number of filtering steps. Find the amounts left for n = 0 and n = 5. (Round to the nearest whole number.)

A) 1800, 56
B) 900, 14,400
C) 900, 28
D) 900, 56