PLEASE HELP ME WITH THIS ONE. ITS REALLY HARD FOR ME. PLEASE ANSWER QUICKLY DUE IN A LITTLE AND ITS HONORS CLASS

After applying the composition r0.90 ry to rs what are the coordinates of r' and s'? a.r'(–3, 1),  s'(–3, 5)b.r'(–1, 3),  s'(–5, 3)c.r'(1, 3),  s'(5, 3)d.r'(5, 3),  s'(1, 3)

F(n + 1) = f(n) – 8. if f(1) = 100, what is f(6)?

Two cyclists 84 miles apart start riding toward each other at the same. one cycles 2 times as fast as the other. if they meet 4 hours later, what is the speed (in mi/h) of the faster cyclist?