Use the given arithmetic sequence to write an equation.

–2, 3, 8, 13,

a: an=5n+7

b)
an=5n−7

c)
an=4n−7

d)
an=−5n−7

part b
find the 7th term of the sequence.

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.