Question

the three - fifths compromise solved the issue of
how to determine membership in the senate.
how congress should manage the slave trade.
how to count enslaved people for congressional representation.

Explanation:

The Three-Fifths Compromise was an agreement during the U.S. Constitutional Convention that addressed the dispute between slaveholding and non-slaveholding states over how enslaved people would be counted for the purposes of allocating seats in the U.S. House of Representatives (congressional representation) and determining tax burdens. The other options are incorrect: Senate membership was determined by equal representation per state (the Great Compromise), and the slave trade was regulated by a separate 1808 compromise.

Answer:

how to count enslaved people for congressional representation.