15 points! i need to know if i’m doing it right the title is called “rotations and their algebraic representations!

In the diagram below what is the approximate length of the minor arc ab

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 !

Solve x+3y=6 and 4x-6y=6 by elimination . show work !