20 POINTS!! pls answer all 3 parts of the question! Use the excerpt from the speech to answer parts A, B, and C (i attached the excerpt as an image) A. Briefly explain one historical development that took place between 1960 and 1965 and led to Johnson’s speech.

B. Explain how Johnson’s goals reflect an expanding sense of American identity.

C. Provide an example of how this bill is connected in a broader sense to at least one other reform of the 1960s.

Standard deviation is best described as

A. the difference between the number and the mean.

B.the sum of the differences between the numbers and the mean.

C. the square root of the sum of the differences between the numbers and the mean squared and divided by the number of terms.

D.the square root of the mean divided by the Z-Score times the sum of the numbers.

Explanation:

so, based on the research i've done. the u.s. government were always on a wild goose chase just to take down castro. he then retired his trone to his brother raul in 2008 due to some health issues. so it's obvious your answer would be:

castro had no allies from which he could receive aid.

hope this and have a fantastic day!

                                                    -wolfiewolffromsketch