Crossover and NPV. Seether, Inc., has the following two mutually exclusive projects available. Year Project R Project S -$45,000 -$76,000 20,000 20,000 17,000 19,000 35,000 30,000 10,000 21,000 9,000 7,000 O12345 What is the crossover rate for these two projects? What is the NPV of each project at the crossover rate