When the nation's leaders met in 1787, these problems needed to be addressed. select all that apply. tax collection irregularities in voting procedures law enforcement trade between the states slavery

On May 25, 1787, delegates from various states met in the Pennsylvania State House in Philadelphia. They held the meeting regarding future plans where the reforms in the economy were discussed and a formula for tax collection was proposed. In the same meeting the law enforcement methods were formulated to maintain peace and harmony in the newborn country and the trade among all the states were appreciated.