When an elderly man passed away he had left each of his 4 children 25% of his estate if he had 72000 how much did each child received

idk what the answer is but for the points

step-by-step explanation:

the first one and the second one that's the answer

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