You are tasked with setting up senior transport to and from the senior center in a large metropolitan area. You are asked to provide a recommendatino on the purchase of large and small vans. You can spend no more than $100,000 for all vans and no more than $500/month on maintenance. Small vans cost $10,000 each and $100/month to maintain while large vans cost $20,000 each and $75/month to maintain. Large vans can carry up to 15 passengers while small vans have a maximum of 7. How many LARGE vans should be purchased? How many SMALL vans should be purchased? What is the maximum number of passengers that can be transported with your recommended number of vans?