One of them is specifically in September 22, 2021 and the other is in March but I’m not really sure what day specifically.
Answer:
[a] 103m (I guess that it is 10^3 m)
Explanation:
To calculate how many millimeters you enter in a kilometer, just know the relationship between both units of distance.
The relationship is as follows:
1 km = 1 000 000 mm
So:
1 km = 1000 m = <u>10^3 m</u> = 10^6 mm = 1 000 000 mm
