Write in decimal form 7+3/100+9/1000

How do i work this problem out using the equation a=pe^rt

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 !

Iam at home. /: i am playing video games. translate the following statement into symbolic form.