Ineed guyys! did i do it wrong? @.@ i'm ded

is  not bad, looks ok.

we can look at it as, 1 kilometer is about 1.609344 miles, there are 1000 meters in 1 kilometer, so therefore there are 1.609344 * 1000 meters in a mile, namely 1609.344 meters in 1 mile, so half that is just 1609.344/2 = 804.672.

answer: 12

step-by-step explanation:

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m