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 S R score Economics 60 60 50 40 30 80 Durability Flexibility Safety 40 10 40 60 70 30 a. From a safety 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. Find the numerical value of the factor (A/F,1%,45) using interpolation. [2]