Answer:
0.754
Explanation:
To the nearest thousandth is another way of saying to three decimal places. It is usual to apply 5/4 rounding, i.e. if the fourth decimal place is below 5 it is just discarded, if it is 5 or above value of the third decimal place is increased by one.
0.75391 = 0.754.
I rounded 9 up to 1 and added it to 3 to become 4
Hope this helps!