Bring the lp to standard form. (b) suppose the objective function changes to max z = 2x1−5x2+ 6x3. how does the standard form of (a) change? (c) suppose the first constraint changes to 3x1 + 7x2 + x3 ≤ −1. how does the standard form of (a) change? (d) consider a general lp with m constraints and n variables. how many basic solutions can an lp have? (this should be some formula in m and n). (e) how many basic solutions can the above lp have at most?