Bob's hardware is deciding how much to order each year from their nut and bolt supplier. Demand is uncertain each year and is equally liekly to be $5,000$ or $7,500($with nothing in between$).$ Variable cost of the nuts and bolts is random and followas a triangle distribution with a minumum of $7$ cents, most likely of $12$ cents and a maximum of $14$ cents. Nuts and bolts sell for $20$ sents each. Any nuts and bolts left over at the end of the year will in cur a holding cost that is $10\%$ of their variable cost. Bob has to order in multiples of $500$ from the supplier.

What is the profit maximizing order quantity $($keep in mind here that Bob is very risk averse$--$ meaning he does not want to lose money$)?$