Given the following four cost behaviors and expected levels of cost-driver activity, predict total costs:
1. Fuel costs of driving vehicles, $0.40 per mile, driven 16,000 miles per month
2. Equipment rental cost, $5,000 per piece of equipment per month for seven pieces for 3 months
3. Ambulance and EMT personnel cost for a soccer tournament, $1,200 for each 200 tournament participants; the tournament is expecting 2,400 participants
4. Purchasing department cost, $7,500 per month plus $5 per material order processed at 4,000 orders in one month.