Help me please I answered it as the one crossed out but it was incorrect please help omg! T-T (Please only answer if you know it)

i think it might be B

Step-by-step explanation:

B

Step-by-step explanation:

a) 8-49= -41

b) (-22)+4= -18

c) 9+(-30)= -21

d is crossed out

the largest is -18

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

a

step-by-step explanation: