If you take out a loan for $200,000 that must be repaid in 10 years with quarterly [payments of $7,200. what is the formula to calculate the annual, interest rate of the loan? What is the result

You receive $50 at the end of year 1 from an investment, $75 at the end of year 2, and $100 at the end of year 3. If the rate of return is 6 percent what is the present value of this investment? Show the formula and formula result you used to answer this question.