How many of the triple permutations of the set A = {1,2,3,4,5,6} have 1 but not 2? help asap​​

Which fact is the best piece of sapori tavern is the overproduction and falling prices what is the cause of the great depression a) in 1930 over in1250 banks close and customers lost all their savings b) the unemployment rate in 1929 was 3.2% and by 1933 there was a 25% unemployment rate. c) in 1920 a bushel of wheat sold for $2.94, in 1929 it’s sold for one dollar and by 1932 a bushel sold for $.30 cents d) the stock market is about average dropped over 22% over a two day period in october 1929 and lost 90% of its value by 1932