Nicola has been playing Roller Derby for several months now, but she has not seen many improvements in her skills lately. She is at the rink three nights a week, but she is starting to feel that there is no point in practicing so hard as it is not paying off. Given what you know, you can reasonably conclude that she is developing .

the united states constitution is the supreme law of the united states. the constitution, originally comprising seven articles, delineates the national frame of government. its first three articles embody the doctrine of the separation of powers, whereby the federal government is divided into three branches: the legislative, consisting of the bicameral congress; the executive, consisting of the president; and the judicial, consisting of the supreme court and other federal courts. articles four, five and six embody concepts of federalism, describing the rights and responsibilities of state governments, the states in relationship to the federal government, and the shared process of constitutional amendment. article seven establishes the procedure subsequently used by the thirteen states to ratify it. it is regarded as the oldest written and codified national constitution in force.

answer; by working independently, the states have a high likelihood of developing innovative solutions that can be employed in other states;

dude you should crop your image so only the question shows. but   can you explain it better

they can increase to boost the enonomy.