Final answer:
The economic steps to building and maintaining the Spanish Empire from 1450 to 1750 involved controlling trade and resources, establishing colonies, and implementing strict economic policies.
Step-by-step explanation:
Once Spain established colonies in the Americas, they restricted trade to ensure profitability. The Spanish Crown controlled the export of raw materials and the import of finished goods, which helped Spain benefit economically.
Additionally, the extraction of precious metals, such as gold and silver, played a crucial role in the Spanish Empire's economic success. The Spanish government implemented the rule known as the quinto, which ensured that one-fifth of all precious metals mined in the colonies went to the Spanish Crown.
Your question is incomplete, but most probably the full question was:
Mention and explain what are the economic steps to building and maintaining Spain empire 1450-1750