Sagot :
Answer:
A. 42 minutes
Step-by-step explanation:
speed = distance/time
time = distance/speed
t = 840m/(20m/min)
t = 42 minutes
Answer:
A. 42 minutes
Step-by-step explanation:
speed = distance/time
time = distance/speed
t = 840m/(20m/min)
t = 42 minutes