Final answer:
The Great Compromise decided the representation in Congress, with the House of Representatives having representation based on each state's population, and the Senate having equal representation for each state.
Step-by-step explanation:
The Great Compromise decided the representation in Congress. It proposed a bicameral congress, with the lower house (House of Representatives) having representation based on each state's population, and the upper house (Senate) having equal representation for each state, with two senators per state.