Seniority is being older or more experienced than someone else. An example of the seniority rule would be a 4 year senator being appointed to a committee over a newly elected senator.
I believe the correct answer is the first option. The labor supply curve is upward sloping because the opportunity cost of leisure decreases as wages decrease and the opposite of such is true as well. As one work one hour more, one will have less time for other activities. As the work rate increases in value, then the opportunity cost increases as well.
Answer
The tour boat operator needs to decide whether to buy a new boat to increase the income obtained per day or increase the number of trips made per day and avoid buying a new boat.
Explanation
Marginal cost measures the change in cost over the change in quantity. Marginal benefit is a measurement of change in benefits over change in quantity. The boat operator is going to buy a new boat. Will the marginal cost (how the boat cost) be greater than the marginal benefit( income from increased number of boats).
I believe the answer is Mac.
Explanation: Mac's GUI was released in 1984.While the others were made not much later between 1984 and 2009
