Answer:
4.7 * 10^7
Explanation:
Put a decimal at the end.
47 000 000.
Count the places to the left of the decimal.
There are 6 zeros and one more place to get a number between 1 and 10.
1 ≤ x < 10 ( note that 10 is not included).
There are 6 + 1 places to move.
Answer: 4.7 * 10^7