)t A company manufactures mountain bikes. The research department produced the marginal cost function C'(x} = 300 3 i] S x S 900. where C'Ex) is in doilars and x is the number of bikes produced per month. Compute the increase in cost going from a production levei of 451] bikes per month to 600 bikes per month. Set up a denite integral and evaluate it The increase in cost is 55D