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# Dwayne invests $4,700 in a savings account at the beginning of each of the next twelve years.

1. Dwayne invests $4,700 in a savings account at the beginning of each of the next twelve years. If his opportunity cost rate is 7 percent compounded annually, how much will his investment be worth after the last annuity payment is made?

2. Robert invests $650 in a savings account at the beginning of each of the next seven years. If his opportunity cost rate is 5 percent compounded annually, how much will his investment be worth after the last annuity payment is made? Nper = 7, rate = 5, PV = 0, PMT = - 650;

3. Jason's opportunity cost rate is 8 percent compounded annually. How much must he deposit in an account today if he wants to receive $5,400 at the end of each of the next 10 years? Nper = 10, Rate= 8, FV = 0, PMT = -5,400

4. If Emma purchased a 5 year annuity and she pays $5000 in year 1, $300 in year 2, $2000 in year 3, $1500 in year 4, and $1000 in year 5, at a 5% rate, what is the worth of the investment today?