Help! PLease Show Step By step.........

Hey there :)

They have provided us with the distance formula
Distance = speed x time
( Note the time should be in seconds or else we need to convert )

8 ) Speed = 50 m/s , t = 5 s

    d = 50 x 5
       = 250 m

9 ) Speed = 25 m/s , t = 3.5 s
    
   d = 25 x 3.5 
      = 87.5 m

10 ) Speed = 60 m/s , t = 0.6 m

Here we need to convert time from minutes to seconds as the speed is metre per second

1 min = 60 sec
0.6 min = ?

Cross multiply 
? = 60 x 0.6 
? = 36 sec

      d = 60 x 36
         = 2160 m