Answer:
B
Explanation:
The Declaration of Liberated Europe is a declaration that was created by Winston Churchill, Franklin D. Roosevelt, and Joseph Stalin during the Yalta Conference. It was a promise that allowed the people of Europe "to create democratic institutions of their own choice".
The two example of Supersonic aircraft are Concorde
developed by UK and France which travelled from NY and London exceeding Mach
(the speed of sound). It was retired following a bad accident. The most famous
supersonic plane is the SR-71 Blackbird spy plane developed by Lockheed. A
supersonic airplane is simply one that is capable of flying faster than the
speed of sound, which is about 760 miles per hour.
Cities developed professional firefighting and police forces.
The question is posted in Wrong subject category. Anyways, the solution is stated below:

The base on both sides are same i.e. 6. For the equation to be true, the exponents(powers) must also be the same. So this means
Therefore, answer to this question is x = 1
east of the Arabian Peninsula