The points L, M, N and O all lie on the same line segment, in that order, such that the ratio of LM: MN: NO is equal to 1:5:1. If LO = 7, find

MN.

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.