Aword part that can be added to the front of a root word and that changes the meaning of the word is a

a. connotation
b. prefix
c. suffix
d. simile

B. prefix is your answer.

Prefix is the word part added to the front of the root word, while the suffix is added to the back of the root word.

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dr. kings dream speech

explanation:

it was late in the day and hot, and after a long march and an afternoon of speeches about federal legislation, unemployment and racial and social justice, the rev. dr. martin luther king jr. finally stepped to the lectern, in front of the lincoln memorial, to address the crowd of 250,000 gathered on the national mall.

- "when these words are put together to convey a meaning it is known as a sentence. a sentence is a group of words that makes complete sense. placing of words in a sentence is very important. the second sentence is a question."