Answer:
Hence, Binaca's total is: 
$ 18450
Explanation:
It is given that:
Bianca is purchasing a new car whose MSRP is $20,750.
She is trading in her old car for $8000 and being upgraded to a premium package for $5000. 
Also Vehicle delivery is an additional $700. 
Hence,
Binaca's total amount is given by:
20,750-8000+5000+700=18,450.
( Since she has to pay for the vehicle plus for the premium package and for the delivery while she will receive an amount $ 8000 for her old vehicle)
Hence, Binaca's total is: $ 18450