- is regulating force in the marketplace if the number of companies producing an item increases the price of the item will be - than before. - people will buy the item because its cheaper

1) competition 2) lower 3) more

Explanation:

the factors that the economies of the muslim empires prosper were:

1- land trade routes-located between three continents  

2- sea trade routes

trade contributed to the spread of muslim empires, and with that islamic culture led to a growing feeling of internationalism resulted in the transfer of technology, science, and other cultural forms.