When did polyphony start to become important for sacred and secular music?

Iwant to be an engineer but cant do math for the life of me, but i also want to be a cop. "what should i do"

The idea of liberalism in eighteenth-century british politics: a. had mainly a civic and social quality. b. prompted two eighteenth-century leaders, joseph mccarthy and hugh mccarran, to demand independence for ireland. c. brought great wealth and power to its main voice, john locke. d. was compatible with inequalities in wealth and well-being. e. had the same meaning as liberalism in twenty-first-century american politics.

What is the difference between direct learning and indirect learning? a. direct learning is independent learning that people pursue on their own. indirect learning is forced on the learner by others, such as parents or teachers. b. direct learning is forced on learners so that they'll become productive members of society. indirect learning is a voluntary action taken by the learner with the intention of becoming a productive member of society. c. when people learn culture directly, they are imitating and observing others. when people learn culture indirectly, they are being taught by someone else. d. when people learn culture directly, they are being taught by someone else. when people learn culture indirectly, they are learning through observation and imitation.