please show separate work & answers

2. (Ch.9) Calculate the crossover rate for the following two projects: Year Investment A 0 -85 1 20 2 40 3 70 Investment B -65 10 20 40 3. (Ch.9) You are looking at a three-year project with a projected net income of $2,000 in Year 1, $4,000 in Year 2, and $6,000 in Year 3. The cost is $12,000, which will be depreciated straight- line to zero over the three-year life of the project. What is the average accounting return (AAR)