If the demand function for a certain commodity is $p ( x ) = 4 - \frac { x } { 30 }$ and the consumer surplus is 15, what should be the sale price?
A)1
B)4
C)1.5
D)2.5
E)3.3
F)6
G)2
H)3

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The Answer of If the demand function for a certain commodity is $p ( x ) = 4 - \frac { x } { 30 }$ and the consumer surplus is 15, what should be the sale price?
A)1
B)4
C)1.5
D)2.5
E)3.3
F)6
G)2
H)3

If the Demand Function for a Certain Commodity Is p(x)=4−x30p ( x ) = 4 - \frac { x } { 30 }p(x)=4−30x​

If the Demand Function for a Certain Commodity Is $p ( x ) = 4 - \frac { x } { 30 }$