I'm sure this is it I got it right on mine

Can someone me and do the problem plz so i can understand it more better

Solve the equation -9p - 17 =10 a -3 b. 16 c. 18 d -16

Mr. and mrs. wallace have decided to buy a car for $21,600. they finance $15,000 of it with a 5-year auto loan at 2.9% arp. what will be their monthly payment be? a. $268.20 b. $268.86 c. $269.54 d. $387.16 (monthly car loan payment per $1,000 borrowed) i need !