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A firm has the production function q = f(L, K) = L0-5 + KO-5 This firm has: O decreasing returns to scale O constant returns to scale O increasing returns to scale O increasing marginal product O None of the above.Suppose a firm has a production function g = f(L,K) = 3L + 2K, and the factor prices are W = $3 and r = $3. If the firm wants to produce 60 units at the minimum cost possible, how much would it cost to produce those 60 units? (hint: remember perfect substitute technology vields corner solutions for L and K). () $150 O $60 O $30 ) $120 @ $90