Answer:
The correct answer is option C.
Explanation:
A rightward shift in the demand curve means that at the same price levels, the consumers are demanding more of the commodity. A rightward shift in the demand curve causes it to intersect with the supply curve at a higher point.
The equilibrium point shifts upward. This causes both equilibrium quantity and price level to increase.
A leftward shift, on the other hand, causes the equilibrium price and quantity to decrease.
A perfectly competitive firm earns a profit when price is above the average total cost.
A perfect competitive firm is a firm that operates in a perfectly competitive market. A perfectly competitive market is a market where the goods and services exchanged are homogenous. There is perfect information in this type of market.
In the long run, firms in a perfect competition earn only a normal profit. If in the short run, firms are earning economic profit, new firms would enter into the market. This would wipe out economic profit. In the short run, if an economic loss is been made, firms would leave the industry.
To learn more, please check: brainly.com/question/13761559
Answer:
12.93%
Explanation:
Given that the amount of 300 is invested for 3 years, while the amount of 100 is invested for 2 years and 100 is invested for 1 year.
also amount accumulated in three years = 800
Applying the formula to find the future value we get
300(1+r)^3 + 200(1+r)^2 + 100(1+r) = 800
which can be further simplified to
300r^3+1100r^2+1400r+600=800
where, r is the effective rate of interest which we have to find out
The above equation is cubic in r, so to solve this we can use equation solver. When we put this equation in equation solver we get
r = 0.12926
r ≅ 0.1293
Therefore, effective rate of interest = 12.93%
