Answer:
Patricia will build 500 toys in 10 hours
Explanation:
5 toys ? toys
--------- = ----------
6 minutes 10 hours
so we would turn the hours into minutes which would be 
600 minutes. 
5 toys ? toys
--------- = ----------
6 minutes 600 mins
Then we would cross multiply and that will give us how many toys she can build in 10 hours, which is 500 toys.