Please solve 18 question b and c part.

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18. A three year $2,600 promissory note was issued at an interest rate of 6% compounded quarterly. It was sold two years later to yield the purchaser 8% compounded quarterly. (a) What was the maturity value of the promissory note? (b) What were the proceeds of the promissory note (amount received when sold two years later)? (c) What was the rate of return for the original issuer of the promissory