Answer:
$80
Explanation:
Maximum wage is the maximum amount of money that a firm can pay its worker based on what the worker can produce and generate as revenue to the firm.
Given that the worker can produce 20 units of output which can be sold for $4 per unit, The maximum wage that the firm can pay the worker = output × price per unit output.
Maximum wage the firm can pay the worker = 20 units × $4 per unit = $80
