Suppose that a person's nominal income rises by 5 percent and the price level rises from 125 to 130. the person's real income will
a) rise by about 4 percent.
b) rise by about 1 percent.
c) remain constant.
d) fall by about 1 percent.

b) rise by about 1 percent

Explanation:

Given that a person's nominal income rises by 5 percent and the price level rises from 125 to 130.

Percentage increase in price level = (130 - 125)/125

                                                         = 5/125

                                                          = 1/25 = 4%

Difference between rise in the person's nominal income and rise in price level

= 5% - 4%

= 1%

Hence the right option is b) rise by about 1 percent.

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