The answer is A I believe it is
Answer:
Step-by-step explanation:
I dont know sorry
Answer:6km
Step-by-step explanation:
Given
when Alice finishes the race Becky is 8km From finishing line
and caitlin 12 km from finishing line.
Suppose t is the time require by Alice to finish the race
and
be the velocity of alice ,becky and caitlin
thus 
thus 
say t' is time required by beckey to complete 8 km thus

therefore for Caitlin

Thus caitlin will cover a distance of 6 km in t' time and 6 km away from finishing.
Answer:
Step-by-step explanation:
mid point=((-2+16)/2,(8+4)/2)=(7,6)