Latisha and Ricky work for a computer software company. Together they can write a particular computer program in 19 hours. Latisha can write the program by herself in 32 hours. How long will it take Ricky to write the program alone

it will take Ricky 46.77 hours to write the program alone.

Explanation: Attached below is a step by step explaination of the solution.

of what agreement it does not show

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.