Choice 'b' is one possible way to state
Newton's second law of motion.
The other choices are meaningless.
Answer
given,
firm is producing = 2,475 units
output by hiring 50 workers W = $20 per hour
25 units of capital R = $10 per hour
marginal product of labor = 40
marginal product of capital = 25





Firm is not minimizing the cost because the firm use more capital and less labor.
the answer is 0.284 lb/in3
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