4.Your uncle needs $1,500,000 upon retirement in 15 years to live comfortably. He can invest $40,000 a year to his retirement. What interest rate would his investment need to earn in order for him to meet his goals?

A)12.1%

B)20.0%

C)6.7%

D)2.0%

E)0.5%

5.Suppose your investment returns are taxed at a 30% rate. If you invest $15,000 today and expect to earn a rate of return of 7%, what will your investment be worth in 8 years?

A)$25,772.79

B)$21,993.54

C)$19,752.14

D)$19,661.94

E)$44,282.46

6.What interest rate would you have to earn if you wanted to double an investment in 18 years?

A)12.0%

B)25.0%

C)12.5%

D)4.0%

E)22.2%