Answer:
A. Message element of the communication model
Explanation:
The communication model basically consists of four factors namely; the sender, the message, the receiver, and the channel. The sender in this context is Tony. Since he is nervous about delivering the information that he has, his concerns relate to the message element in the communication model.
The information is the message Tony wants to pass. So his nervousness is about delivering the message well.
Answer: Higher; Comparative advantage
Explanation:
A country or a firm has a comparative advantage in producing a commodity if the opportunity cost of producing that commodity in terms of other commodities is lower than the other country or firm.
Opportunity cost is the benefit that is foregone for an individual by choosing one alternative over other alternatives available to him.
If the opportunity cost is lower for an individual then this will benefit him whereas if the opportunity cost is higher then this will not benefit the individuals.
Therefore,
United states's Opportunity cost of producing a pair of shoes = 
= 5 apples have to be foregone for producing a pair of shoes
Canada's Opportunity cost of producing a pair of shoes = 
= 2 apples have to be foregone for producing a pair of shoes
Hence, Canada has a comparative advantage in producing pairs of shoes because Canada's opportunity cost of producing a pair of shoes is lower than United states opportunity cost.
I would say the answer is D
Answer:
$150
Explanation:
The formula to compute the GDP is as follows
GDP = Consumption + Investment + Government purchase + Net exports
where,
Consumption = Consumption of expenditure = $50
Investment = Business fixed investment + change in inventory + construction of new homes & apartments
= $30 + $10 + $30
= $70
The change in inventory is
= Ending inventory - beginning inventory
= $20 - $10
= $10
Government purchase = Government purchases of goods and services = $20
Net exports
= Exports - imports
= $50 - $40
= $10
So the value of GDP is
= $50 + $70 + $20 + $10
= $150
The answer is True. You have more samples, the result is more accurate.