Answer:

Step-by-step explanation:

I believe it's the first option. Hope this helps.
Answer:
13.9 each sec
Step-by-step explanation:
There are 24hrs in one day and 1,440min in a day, and 86,400sec in a day. 1.2m per day, so 1,200,000/86,400= 13.9
They will meet back up in 40 minutes because 8x5=40 and 10x4=40 which 40 is both a multple of 8 and 10 so you're welcome