In the keynesian-cross model, if the mpc equals 0.75, then a $3 billion decrease in taxes increases planned expenditures by and increases the equilibrium level of income

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According to the law of demand, there is an inverse relationship between price and quantity demanded. that is, the demand curve for goods and services slopes downward. why?

Self-interest achieve society’s economic goals because producers know which goods consumers want the most. as consumers and producers exercise their freedom to act in their own self-interest, markets will produce the desired goods at the lowest possible cost. consumers and producers both operate based on society’s economic goals. consumers know which goods can be produced at the lowest cost. there is a wide variety of desired goods and services in a market system because producers determine what to produce. consumers change their minds frequently. there is always a need to produce something new and improved. individual wants are diverse. what is produced is ultimately determined by consumers, because if the goods offered are not what consumers want, consumers will not buy them. producers, because they are driven by profits. producers, because they determine what to produce. consumers, because they participate in marketing surveys.

Darlene has a balance of 3980 on a credit card with an apr of 22.8% paying off her balance and which of these lengths of time will result in her paying the least amount of interest?