Answer:
31, can you help me with my questions please
SinФ=-12/13
cosФ=Base/hypotenus
(hy)^2-(perpendicular)^2=(base)^2=13^2-12^2=5
cosФ=-5/13
C because there are 3 friends with a 15 dollar coupon and also they played less than 20
I dont really remember how to solve this since i done this some time ago the angles must be the same i would say d since 5 the bigger triangle is five times bigger
~ hope this helps ~