Please need help for this question. Will give high ratings for neat wok. Related to engineering economy

PROBLEM 4: The U.S. Bureau of Reclamation is considering five First Annual national park projects. The project has an infinite life span Project ID Cost, Income, and MARR of 7.5% $1,000 $1,000 -10,000 1,300 Capital Cost B -50,000 2,600 AW -70,000 4,000 CC =- - 15,000 1,200 E -20,000 2,000 Part a.) Determine an overall rate of return for each project. Part b.) Determine which projects should be funded if they are independent projects. Part c.) Determine which project should be funded if they are mutually exclusive using incremental ROR analysis