For a perfectly competitive firm, $S T C = 100 + 20 q + q ^ { 2 } \text { and } S M C = 20 + 2 q$ . If the market price is equal to 40, what is the maximum profit the firm can earn?
A)400
B)200
C)100
D)0

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The Answer of For a perfectly competitive firm, $S T C = 100 + 20 q + q ^ { 2 } \text { and } S M C = 20 + 2 q$ . If the market price is equal to 40, what is the maximum profit the firm can earn?
A)400
B)200
C)100
D)0

For a Perfectly Competitive Firm STC=100+20q+q2 and SMC=20+2qS T C = 100 + 20 q + q ^ { 2 } \text { and } S M C = 20 + 2 qSTC=100+20q+q2 and SMC=20+2q

For a Perfectly Competitive Firm $S T C = 100 + 20 q + q ^ { 2 } \text { and } S M C = 20 + 2 q$