Answer:
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Food because income is money you take in.
Your godmother put $2,000 in a trust fund for you. In 10 years the fund will be worth $5,000. 9.60% is the rate of return on the trust fund.
FV = Future Value
PV = Present Value
r = rate of interest
n= no of period
FV/ PV = (1 + r )^n
5000/2000 = (1 + r%)^10
2.5 = (1 + r%)^10
r = 9.60%.
The rate of return is the net profit or loss of an investment over a period of time, expressed as a percentage of the original cost of the investment. 1 When calculating the rate of return, find the percentage change from the beginning of the period to the end of the period.
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Answer:
(i) Option (A) is correct.
(ii) Option (A) is correct.
Explanation:
(i) Marginal revenue refers to the change in total revenue obtained from the sale of an extra unit of a commodity. It is calculated by differentiating total revenue with respect to output. It is shown as:

where,
TR = Total revenue
q = output
(ii) In a perfectly competitive market, price is equal to both average revenue and marginal revenue. Since, firms in a competitive market are not required to reduce the price of their product for selling more number of units. Hence, the average revenue remains the same at all the level of output. That's why average revenue in equal to the price under perfect market conditions.
Therefore, every additional unit of an output is sold at a same price, so the marginal revenue obtained from an extra unit is constant and hence, price is equal to the marginal revenue.