a. Find the present values of the following cash flow streams at a 3% discount rate. Do not round intermediate calculations. Round your answers to the nearest cent 0 1 2 4 $150 $450 $450 $450 $250 Stream A $0 Stream B $250 $450 $450 $450 $150 $0 Stream A: Stream B: $ b. What are the PVs of the streams at a 0% discount rate? Round your answers to the nearest dollar. Stream A: $ Stream B: $