It always helps to write the number fully out to convert to scientific notation.
13.7 billion is the same as 137,000,000,000. When we move our decimal point to make it 1.37 x 10 - we moved 11 spots to the left (positive) so our scientific notation would be: 1.37 x 1011
80 billion in scientific notation is: 8.000000e+10
100 billion in scientific notation is: 1.000000e+11
It is: 7.5*10^9 = 7.5 billion in scientific notation
Four billion in Scientific Notation = 4 x 109
6.32 billion in scientific notation is: 6.32 x 109
80 billion in scientific notation is: 8.000000e+10
100 billion in scientific notation is: 1.000000e+11
660 billion in Scientific Notation = 6.6 x 1011
Three billion in Scientific Notation = 3 x 109
It is: 7.5*10^9 = 7.5 billion in scientific notation
Four billion in Scientific Notation = 4 x 109
6.32 billion in scientific notation is: 6.32 x 109
40 billion in Scientific Notation = 4 x 1010
The scientific notation of 250 billion is: 2.5 x 10^11
17 billion in Scientific Notation = 1.7 x 1010
2.68 billion in Scientific Notation = 2.68 x 109
4064.6 billion in scientific notation is 4 X 10^12