ODDBODS Playset company designs "House for Kids" that includes features indoor and outdoor spaces with furniture. To foster an environment for kids to imagine, play, build and learn, the materials cost of 2400 TL and will reduce existing expenses by 420 TL per year for eight years. If the MARR is 10% per year;

a) What is the minimum salvage (market) value after eight years that makes the House for Kids worth purchasing?

b) What is the House for Kidss IRR if the salvage value is negligible? Use PW for linear interpolation.