The following represents the inflation rates of foreign country X for the past 5 years: Year 1: 35%

Year 2: 20%

Year 3: 25%

Year 4: 30%

Year 5: 15%

Which statement is correct about the selection of a functional currency for country X at the end of year 5.

a.
Country X is highly inflationary; the US dollar must be used

b.
Country X is highly inflationary; the foreign currency must be used

c.
Country X is not highly inflationary; the US dollar must be used

d.
Country X is not highly inflationary; either the US dollar or the foreign currency may be used depending on the factors to determine the functional currency

e.
Country X is not highly inflationary; the foreign currency must be used

answer: the common difference is -0.10

4.

step-by-step explanation:

it have the same area.brainliest

the system of inequalities is

step-by-step explanation:

step 1

find the equation of the dashed line

we have the points

(0,0) and (3,1)

the line passes through the origin, so, is a direct variation

find the slope

the equation of the dashed line is

the solution of the inequality a s the shaded area above the dashed line

therefore

the equation of the inequality a is

step 2

find the equation of the solid line

we have the points

(4,0) and (0,4)

find the slope

the equation of the solid line is

the solution of the inequality b s the shaded area below the solid line

therefore

the equation of the inequality b is

step 3

the system of inequalities is