11) A company's marginal cost incticn is C(36) = 0.323: 450? + 16 in dollars per unit where x is the number of units produced. If it costs $23,000 to produce 400 units, nd the cost function. {8 pts} 12) Find the intervals where g (x) : 2(x2 + 4) 14 is increasing and where it is decreasing. {6 pts}