In 2011, it was estimated that the number of U.S households which had dogs as pets was 4.33 x 10^7 and the average number of dog
s per household was 1.6 based on the infomation, approximately how many dogs were household pets in the US in 2011 in Scientific notation A. 2.71 x 10^7
B. 3.70 x 10^8
C. 5.33 x 10^8
D. 6.93 X 10^7