What did Hitler write during his incarceration?

Hitler began writing Mein Kampf in 1924 in Landsberg prison, following his conviction for high treason for attempting to overthrow the German republic in November 1923 in the so-called Beer Hall Putsch.

Hitler began writing Mein Kampf in 1924 in Landsberg prison, following his conviction for high treason for attempting to overthrow the German republic in November 1923 in the so-called Beer Hall Putsch.

Explanation:

a) hostility to or prejudice against jews.

b) the holocaust, also referred to as the shoah, was a genocide during world war ii in which nazi germany, aided by its collaborators, systematically murdered approximately 6 million european jews             , around two-thirds of the jewish population of europe, between 1941 and 1945.

the perimeter of a triangle is 69 cm. side a is 5 cm shorter than side b. side c is twice as long as side a. find the length of each side. i need to know how to do it in 2 equations.  

equations:

a = b-5

c = 2a

a + b + c = 69