<span>A natural monopoly is a type of monopoly that exists as a result of the high fixed costs or startup costs of operating a business in a specific industry. Additionally, natural monopolies can arise in industries that require unique raw materials, technology or other similar factors to operate.</span>
Explanation:
The circular flow model shows?
The interactions between households and businesses in the free market.
Answer:
1 pound and 28 crowns is equivalent to 7 dollars.
Explanation:
Let the dollars be x , crowns be y and pound be z.
To find = 1z + 28y = ? (value in dollars)
5 dollars and 35 crowns is equivalent to 7 pounds
...[1]

4 dollars and 4 pounds is equivalent to 56 crowns

...[2]
Using value of from [1] here in [2]:



Now:



1z + 28y = ?


1 pound and 28 crowns is equivalent to 7 dollars.
Human activities contribute change- by change in the earths surface