Answer:
Explanation:
By definition, the form of Scientific notation is:

Where the base is 10, "a" is any number from 1 to 10 but not including 10, and "n" is an integer.
Therefore to write a number in Scientific notation, the decimal point must be after the first digit and the power "n" must indicate how many places the decimal point is moved.
We know that:

Then, we need to move the decimal point 8 places to the left:
To write $9,118 in scientific notation, we need to move the decimal point 3 places to the left: