if the amount of money brought in by the states from motor vehicle licenses increased at a relatively constant rate of 499.79 million dollars per year from 2000 to 2010. In 2010, the states brought in $15,099 million in money from motor vehicle licenses. How much money was brought in from licenses in 2000?

Your question simply translates into finding the first term of an AP,

given that term10 = a+9d = 15099, and d = 499.79

a + 4,498.11 = 15,099
a = 8,510.89