What's the difference between 9.6×10 ^8 and 9.9×10^7? Express your answer using either standard notation or scientific notation.
The first number, 9.6×10^8, is equivalent to 960,000,000 in standard notation.
The second number, 9.9×10^7, is equivalent to 99,000,000 in standard notation.
Therefore, the difference between 9.6×10^8 and 9.9×10^7 is 960,000,000 - 99,000,000 = 861,000,000.