Answer:
The two marked in the image.
Step-by-step explanation:
In scientific notation you will want only the most significant non-zero digit before the comma.
The first underlined number has two digits before it, the correct representation should be [tex]1.25\times10^4[/tex]
The second underlined number has a 0 leading digit, while the most significant non-zero digit is a 4. The correct represantation should be [tex]4.5\times 10^2[/tex]
An extra case could be made for the second number of the list, since it has no decimal part, but the way I read it means "the instrument used to measure the data has 0 decimal places accuracy"
