When a bank keeps $12 from a $100 deposit as legal reserves, it is using <span>a fractional reserve system. The correct option among all the options that are given in the question is option "b".
</span>The Fed has defined different categories of money, M1 and M2, according to the money's function. The correct option among all the options <span>that are given in the question is option "b".</span>
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Answer:
r = 11.5%
Explanation:
Given data:
invested amount $20,000
withrawl amount after 5 year is $5000
Amount at the end of 10th yr is $50,000
present value is given as

where
A - amount after given n year


Let 
squaring on both side




solving for t we get
t = 1.711
so, 