In one month American's consumed 320,500,000 gallons of gasoline. Express this number in scientific notation.
A.3205 x 109
B3.205 x 108
C3.205 x 10-8
D32.05 x 107
A.3205 x 109
B3.205 x 108
C3.205 x 10-8
D32.05 x 107