Asuppose you played getting close with only these game cards: 5/6,9/10,1/2,2/3,4/5 1. which two cards have the greatest sum? how do you know? estimate the sum. 2. which two cards have the least sum? how do you know? estimate the sum.

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