Find the common factor in the given algebraic expressions: x(a-b), y (b-a) Explain please.

Need on this one asap im almost done with this subject

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.

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 !