The amendment process allows the Constitution to be amended through the passing of time. There are two ways to amend the Constitution either the proposal for amendment must be approved by 2/3 of the House of Reps. and Senate or 2/3 of states can approve it at a National Constitutional Convention. Once approved, it is then ratified by 3/4 of the state legislatures or 3/4 of state held conventions.
Due to the price of the French Indian war the British imposed taxes on the colonies. taxes such as the stamp and tea tax would lead to the american revolution. I hope this helps.