Respuesta :

ItzDay

Answer:

8 Kilometers

Step-by-step explanation:

1m=0.001km

   So...

8000m=8km

Answer:

0.8

Step-by-step explanation:

Jessica can swim a lap in  seconds

Converting it into decimals,

Means  seconds

Means Jessica can swim a lap in 29.4 seconds

Marta can swim a lap in 28.7 seconds.

So, Martha is faster than Jessica by  seconds