6 salads is the answer to this question
X+40+134=180
X+174=180 (combine like terms)
X=6 (subtract)
Answer: Option 'E' is correct.
Step-by-step explanation:
Marginal utility is the addition utility derived from each successive unit of a particular good.
so, marginal utility is the change in utility from consuming an addition unit of a good or service.
Mathematically, it is expressed as

Hence, Option 'E' is correct.
Answer:

Step-by-step explanation:
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