Final answer:
A major advantage of Great Britain at the start of the Revolutionary War was their financial support from the British empire.
Step-by-step explanation:
A major advantage of Great Britain at the start of the Revolutionary War was that British troops were supported by the wealth of the British empire. The British empire was one of the wealthiest in the world at that time, giving the British army financial resources to fund their military efforts. This allowed them to provide their soldiers with better equipment, supplies, and training compared to the colonies. Additionally, the British navy was dominant, giving them control over important supply lines and the ability to transport troops quickly and efficiently.
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