Explanation: Because Ginny's mother has accompanied her daughter on multiple occasions she has both taught and tested her on the safety rules. Ginny has demonstrated mastery of them and consistency in their application. Consequently, Ginny agrees to follow the rules and in exchange her mother allows to go to the park unaccompanied.
This power is important for congress to have because money keeps the government going. Letting only Congress use this power ensures that the country’s money Is used correctly, being that it is decided by a vote.