The primary effect of cultural exchange between Europe and the Islamic world was that Muslim goods and knowledge led to some advancements in European society. One advancement example is the number system.
Thousands attend the Hiroshima Peace Memorial Ceremony annually. Other critics argued that American diplomats had ulterior motives. The Soviet Union had entered the war against Japan, and the atomic bomb could be read as a strong message for the Soviets to tread lightly.
Both are remembered for strong leadership as prime ministers of their countries
I think since there's two different groups so you divided 83 into those two groups which gets you 41.5. Then you subtract 15 from the 41.5, that gets you 26.5. Once you finish subtracting you will subtract 26.5 from 83 which gets you 56.5. After that add the 56.5 & 26.5 together to see and that gets you ,your 83. I think it might be wrong