Which of the following ratios is used to determine ones debt-to-income ratio?
a. 20/28
b. 20/36
c. 28/30
d. 28/36
Please select the best answer from the choices provided

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.