Which of the following events happened first?

Muhammad began to tell people about messages from God
Muhammad taught that there was only one God
Muhammad received messages from God through an angel
Muhammad meditated in a cave outside Mecca

Why do all market economies have taxes to support armed forces police forces public schools and at least some form of public transportation?

Calculate the iq of a 20 year old who has the mental age of 25

Rational ignorance suggests that a. voters are ignorant on issues that are not of special interest to them b. voters do not pursue information about issues before voting c. low voter turnout is due to a lack of understanding of the platforms of each political party d. voters are uninterested in the electoral process