Tom decides to lease a car.  He drives 50 miles on Monday, Wednesday, and Friday, and Sunday for the rest of the days he drives 100 miles.  He has to pay $.1 per mile he drives.  He also has to pay a weekly fee of $100.  How much does he have to pay in a year.
How many days does Tom drive 100 miles? ** He does the long drive 7-4=<<7-4=3>>3 days a week
How many miles does Tom drive in a week? ** So he drives a total of 4*50+3*100=<<4*50+3*100=500>>500 miles a week
How much does Tom pay in a week? ** That means the car cost 500*.1=$<<500*.1=50>>50 just for the mileage per week
How much does Tom pay in a week? ** So he pays 100+50=$<<100+50=150>>150 per week for the car
How much does Tom pay in a year? ** That means the total cost of the car is 150*52=$<<150*52=7800>>7800 a year
#### 7800