The train traveled 100km (50x2) down and then 375km (75x5) up. So the train is 275km (375-100) up from where it started.
The answer to the question is Eukarya
Under the leadership of Mikhail Gorbachev, the doctrine of perestroika called for "<span>A. Openness in communication", since the "closed off" Soviet Tactics of the past were clearly not working by the 1980s.</span>
<h2>The answer to 9 is <em><u>slippage of a block of material moving along a curved surface</u></em></h2>
Explanation:
A university is building a new student center that is one third the distance from the arts center to the Academic.