Please help math question

What is the value with a place of tenths in 907.456 1) 0 2) 6 3) 4 4) 5

For what values of x is x2 + 2x = 24 true?

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.