(Future value of an annuity) in 12 years you are planning on retiring and buying a house in Oviedo, Florida. The house you are looking at currently costs $80,000 and is expected to increase in value each year at a rate of 4 percent. Assuming you can earn 15 percent annually on your investments, how much must you invest at the end of each of the next 12 years to be able to buy your dream home when you retire? a. If the house you are looking at currently costs $80,000 and is expected to increase in value each year at a rate of 4 percent, what will the value of the house be when you retire in 12 years? (Round to the nearest cent.) b. Assuming you can eam 15 percent annually on your investments, how much must you invest at the end of each of the next 12 years to be able to buy your dream home when you retire? (Round to the nearest cent.)