1.If the income of consumers increases, what happens to the demand, the market-clearing price, and the quantity supplied for the market for new automobiles?

	Demand, supply, and market-clearing price will all increase.
	Demand and supply will increase while market-clearing price will decrease.
	Demand and market-clearing price will increase while quantity supplied will decrease.
	Demand will decrease while market-clearing price and quantity supplied will increase.

2.SSS can produce cards and tablets. The daily production possibilities for the two products are shown below.

SSS Production Possibilities (daily)
Combination	Cards	Tablets
A	225	0
B	210	15
C	180	30
D	135	45
E	75	60
F	0	75

In moving from combination D to E, what is the marginal opportunity cost of producing an additional tablet?

Options:

	1
	2
	3
	4