1. Which of the following is not typically a factor used to determine retirement

1. Which of the following is not typically a factor used to determine retirement benefit levels of employees under a defined benefit retirement plan?Years of serviceNumber of dependentsAge Wages or salary level2. What type of union security arrangement requires a person to join the union within a certain amount of time after being hired?Agency shopMaintenance of membershipOpen shopUnion shop3. What percent of employers in a bargaining unit must sign authorization cards for the NLRB to hold a union representation election?30 percent50 percent35 percent51 percent4. What type of impasse resolution procedures is most widely used?MediationFact-findingArbitrationStrikes