Answer:
The correct answer is: cigarettes; fiat.
Explanation:
Money performs a number of functions such as medium of exchange, store of value etc. Before the introduction of money, goods and services were used as a medium of exchange. This system was called barter system.
The difference between cigarettes and dollars is that cigarettes have an intrinsic value. Dollars do not have any intrinsic value, but it has high face value.
Fiat money is the physical money in notes and coins which are not backed by any other commodity. These are made legal tender by the government and have no intrinsic value of their own.
The navigation and hazard-avoidance software was developed at Carnegie Mellon University. The camera system and<span> the art image compression system was developed by JPL.
Hope that helps.</span>
B, due to management training
Answer:
Nike's revenues in the first quarter increased by 16.8% relative to the fourth quarter.
Explanation:
When assigning dummy variables, a number of dummies (the total number of variables less one) are always included.
In this case, Nike revenues are related to the dummies for each of the quarters in the year less 1. Base on this, the coefficient of 16.8 for the first quarter dummy indicates that the first quarter revenues for Nike increased by 16.8%, more than as compared to the fourth quarter revenues.
So, this quarterly dummies projects the coefficients which indicate the increase or decrease which was relative to the fourth quarter revenues. Base on this, the Nike's revenues in the first quarter increased by 16.8% relative to the fourth quarter.