1. PTUK university has two proposals to renovate the engineering building. The two proposals are assessed according to different attributes as follows: [6] Importance Rates to proposal Attribute Score B Economics 70 60 50 Durability 30 30 80 Flexibility 60 10 40 Safety 40 70 20 a. From an economic perspective, which proposal will you accept? [1] b. If you consider all attributes, will you change your mind? (use the table to show your calculations) [5] 2. A factory expects to purchase new units in 3 years and it will cost $350,000. How much should the factory set aside each year, if the account earns 10% per year? [2]