Answer:
The answer is: D. By the end of the 1920s, the top 0.01 percent of the U.S. population earned as much as the bottom 42 percent.
Explanation:
Black Tuesday was the fourth and last day of the stock market crash of 1929.
The 1920s is the decade when America's economy grew 42 percent. Mass production spread new consumer goods into every household. The modern auto and airline industries were born.
Just take 12*5 to get the answer 60.
They stop war against each other
That would be August 15, 1945! Japan had announced their surrender on this day, however, they officially surrendered and signed on September 2, 1945. This is the date a 6-year war, finally came to an end. The reason for their surrender, well, the IJN was so devastated that they couldn't keep fighting since Naval Movement is crucial in war. July the fighting had stopped, but it wasn't until August they announced a surrender, and it wasn't until September, that the war ended.
P.S Rip Yamato, Shinagago, and Musashi :(