When countries such as China emerge from communism, they often require foreign investments. Why?

Most countries need foreign investment because they are rejoining the world economy in some cases, have not diversified what they produce, and what they do produce is nationalized.

Explanation:

Think of Venezuela specifically. Part of the reason it is in such bad shape is because it's main source of revenue is oil, which is mainly controlled by the state. When communism collapses, there is no state to control that sole product which is where foreign investment comes in to do that instead.

the perimeter of a triangle is 69 cm. side a is 5 cm shorter than side b. side c is twice as long as side a. find the length of each side. i need to know how to do it in 2 equations.  

equations:

a = b-5

c = 2a

a + b + c = 69

i am not 100% positive but i think it is is b. both are non-partisan jobs

i am pretty sure that members of congress have term limits, can be impeached, and are nominated through direct popular vote.