The train traveled 100km (50x2) down and then 375km (75x5) up. So the train is 275km (375-100) up from where it started.
Answer:
HeLa cells have been used in research to study
Explanation:
the nature and progression of cancer
Organization is not a characteristic of life
Answer:
you don't earn money while volunteering
volunteering aboard can be expensive
many volunteers have too high expectations
Explanation:
I searched it up and took time to read
