3.5
one thousand million=15 billion 1 billion/ 15 billion = 1/15= 0.0666
15
9 billion divided by 1 million is 9,000
0.2
1
0.04
1 billion billion equals about 167 million.
1.4791
1
1 Billion/10 = 100 Million.
A million billion in scientific notation is 1e+15 or 1 x 10^15