I need help with math trigonometry and law of sines

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 !

Which of the following contains a variable?

Write 5(6x+4)-2(5x-2) in the form a(bx+c) where a,b and c integers and a> 1