Refer to the accompanying table below. According to the Cost-Benefit Principle, how many units of this activity should be carried out?Units of ActivityTotal CostTotal Benefit0$0$01$30$1002$40$1603$60$1904$100$2105$150$2206$210$225 

Refer to the scenario above. If the income tax rate for the fourth household is higher than the income tax rate for the second household, it can be inferred that the government follows a ________ income tax system

A) progressive B) regressive C) proportional D) value-added

According to the efficient markets hypothesis, who is most likely to benefit from frequently moving funds from one asset to another?

A) your broker B) small investors C) big investors D) only those who consistently beat the market