Answer:
724,000,000,000 = [tex]7 * 10^{11}[/tex]
Explanation:
To convert a number into scientific notation, we have to find how many digits are after the first digit so:
7, 2 4 0 0 0 0 0 0 0 0 0
11 digits are after 7
Meaning to make it into scientific notation, the power of 10 would be 11
[tex]10^{11}[/tex]