How am any zeros are in the simplified expression 4 times 10^ x? a. x b. x -1 c. x+1. d. 4x. which one is it? a or b or c or d?

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

i dont know men

step-by-step explanation:

49%

step-by-step explanation:

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