ASAP. only got 15 min on quiz

Adam used 1072.4 gallons of water over the course of 7 days. how much water did adam use, on average, each day?

If f(x) = 6x – 4, what is f(x) when x = 8? a2 b16 c44 d52

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.