Something that is a billion starts with base 109. Therefore, the term in scientific notation is 7.0 x109
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7 billion in Scientific Notation = 7 x 109To express a number in scientific notation, you first need to divide it by a power of 10 such that the greatest significant figure is in the units place. In this case, that can be done by dividing 7 billion by 1 billion to give 7. Next, the power of ten that was used should be placed alongside as a multiplication. We used 1 billion, which is the 9th power of 10. Thus, 7 billion in scientific notation is 7x109
80 billion in scientific notation is: 8.000000e+10
100 billion in scientific notation is: 1.000000e+11
Four billion in Scientific Notation = 4 x 109
6.32 billion in scientific notation is: 6.32 x 109