What is the difference between negative feedback and positive feedback mechanisms?

Strawberry plants reproduce by

How does the economy of cuba differ from the economy of north korea? in north korea, the government’s control of the economy has begun to loosen. in cuba, the government maintains a tight hold over the economy. in cuba, the government’s control of the economy has begun to loosen. in north korea, the government maintains a tight hold over the economy. in north korea, there is economic uncertainty in exchange for individual choice. in cuba, there is economic security in exchange for government control. in cuba, there is economic uncertainty in exchange for individual choice. in north korea, there is economic security in exchange for government control.\

While on vacation in las vegas jennifer, who is from utah, wins a progressive jackpot playing cards worth $15,875 at the casino royale. what implication does she encounter when she goes to collect her prize?