Which of the following is an arithmetic sequence 1.4,8,12,16,20
2.1,3,7,15,31
3.2,9,16,23,30
4.1,1,2,3,5,8
5.1,2,4,8,16
6.13,9,5,1,-3
7.11,17,23,30,36
8.29,20,11,2
9.3,9,27,81
10.0,1,3,6
11.11,15,19,23

Juanita wade's new car has an msrp of $28,902.11 including title and processing fees. the premier package which includes surround sound and dvd player costs three times the amount of the in-style package which includes leather seats and select wheels. the total cost of her new car was $34,290.08 which included the 6.5% sales tax. find the cost of the premier package to the nearest cent.