. _ a 111 . . ' Alice only consumes bread (x1) and butter (x2). Her preferences over these goods are represented by u(x1, x2) _ xlx2 .Alice used to live In Town A. There, she had an income of m = 12 and faced prices 191 = l and p2 = 2. Now, Alive lives in Town B, where her income is still m = 12 but prices are p1 = 7 and p2 = 1. If rounding is needed, please round to 3 decimal places. a) When Alice chooses an optimal bundle of bread and butter in Town B, her MRSLZ at that bundle is E b) If Alice is exactly as satised with her optimal bundle in Town B as she was with her optimal bundle in Town A, this means that a =