One music download store charges a monthly fee of 10$ plus 1$ per song downloaded another music download store charges a monthly fee of 30$ for all the songs you want to download

ab: 2 n83b8eb7ebi. 8e yen in

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