The end of the stone age (around 10,000-12,000 years ago) witnessed the change from hunter-gatherer societies to agricultural societies. this led to the rise of civilization. one of the societal changes that occurred at this time was that people

Which steps are important when designing and conducting a scientific experiment? hide the results from fellow scientists. identify the independent variable. eliminate all dependent variables. address any confounding variables. form a non-falsifiable hypothesis.

What is the rule relating the ratio of marginal utility to prices of two goods at the optimal choice? explain why, if this rule does not hold, the choice cannot be utility-maximizing.

Many single parents report complex feelings, such as frustration, failure, and guilt. this often leads them to behave in a(n) toward their children.