3. Complete the equivalent ways of describing the portion of the race that the runner has completed.

(a). ; (b). 33 to 40

Step-by-step explanation:

Use "magic fraction"

(a). Distance covered by runner is 33 yards

Whole distance is 40 yards

The portion of the race that the runner has completed is

(b). The portion of the race that the runner has completed is 33 to 40

2

step-by-2step 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