On January 1, 2018, Red Inc. purchased a delivery equipment for $98,000. The equipment's estimated residual value is $10,000, and its estimated useful life is 8 years. On December 31, 2019, what was the net book value of the equipment using the straight-line method of depreciation

Assume a competitive firm faces a market price of $60, a cost curve of c = 0.003q^3 + 25q + 750, and a marginal cost of curve of: mc = 0.009q^2 + 25.the firm's profit maximizing output level (to the nearest tenth) is , and the profit (to the nearest penny) at this output level is $ will cause the market supply to (shift right/shift left). this will continue until the price is equal to the minimum average cost of $