Answer:
The mayor–council government system is a system of organization of local government that has an executive mayor who is elected by the voters, and a separately elected legislative city council. It is one of the two most common forms of local government in the United States and is also used in Canada and Italy.
President Franklin D.Roosevelt establish Social Security to provide economic security. It was originally named as Economic Security Act but was changed. Therefore, the correct answer is letter B. It started on August 14, 1938. They collected the first taxes for Social Security in 1937
The vaqueros swelled with veterans who headed west to work on cattle ranches, I don't know if this specifically answered your question but i hope it helped.
The number of senator from the state+ the amount of other electors according to the state's population that is all I know
"Bleeding Kansas", this was a fight between North and South over Kansas and Nebraska to be a free or slave state