Afirm's marginal cost has a minimum value of $50, its average variable cost has a minimum value of $80, and its average total cost has a minimum value of $90. then the firm will shut down if the price of its product falls below
a. $90.
b. $80.
c. $50.
d. $40.

correct option is b i.e $80

Explanation:

Given details

marginal cost is $50

average variable cost is $80

average total cost is $90

From the data given above we can conclude that firm will shut down if product price will fall below than $80

shut conditioned occur when product price fall below than average variable cost.

Therefore correct option is b i.e $80

start by isolating the variable on one side by adding 43w^2 to both sides.   the equation will read:

25w^2+5=0

*subtract 5 from both sides*

25w^2=-5

*divide both sides by 25*

w^2=-1/5

*take the square root of both sides*

w=√(-1/5)

the square root of -1 is i.   the square root of 5 remains √5

the answer is i/√5.

hope this

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