Eric and his work crew have 50 trees to plant. in 8 hours today, they planted 40 trees. if they work at the same rate tomorrow, how long will it take to finish planting the trees? 2 hours

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