In: Economics
(a) Q = 8L + 7K = 8*21 + 7*6 = 210, thus not possible to produce 234
(b) Q = 3KL+L-4 = 3*21*6 + 21 - 4 = 395, thus possible to produce 234 but it is technically inefficient
(c) Q = 9√KL = 9*(21*6)1/2 = 101, thus not possible to produce 234
(d) Q = min{2L, 25K} = min{2*21, 25*6} = min{42, 150} = 42, thus not possible to produce 234