To increase an amount by 30% what single multiplier do you use

Does anyone know the answer to the question?

Read the sentence from susan b. anthony's "on women's right to vote." hence, every discrimination against women in the constitutions and laws of the several states is today null and void, precisely as is every one against negroes. in this sentence, the author's tone is best described as

How does this comparison reinforce what powell is trying to say in this paragraph