Problem 08.028- Determine which permanent project to select based on incremental cash flows Two roadway designs are under consideration for access to a permanent suspension bridge. Design 1A will cost $2.2 million to build and $350,000 per year to maintain. Design 1B will cost $4 million to build and $40,000 per year to maintain. Both designs are assumed to be permanent. Use an AW-based rate of return equation to determine (a) the breakeven ROR and (b) which design is preferred at an MARR of 40% per year a) The breakeven ROR is[ ]%. b) At an MARR of 40% per year, design [Click to selectM is preferred