The assertion that "there is no free lunch" means that
a) marginal analysis is used in economic reasoning.
b) choices need not be made if behavior is rational.
c) there are always trade-offs between economic goals.
d) all production involves the use of scares resources and thus the sacrifice of alternative goods.

c

Explanation:

this is the answer because if u want to get what u want u have to pay the price for it

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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