A reserve is an account a. Set aside from profit for an unknown liability
b. Of loss from trading activities
c. Of profit from trading activities
d. Set aside from profit for specific purpose

The correct option is;

d. Set aside from profit for specific purpose

Explanation:

A reserve which is a term in accounting to define a portion of the profits of the business set aside to build the financial posture of the company by expanding the business or to grow to an higher operating level

A reserve account which can be referred to as a reserve fund, is an account  meant to keep a portion of the business profits to serve a particular purpose in the future.

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