A 500 kg block, starting at rest, slides down a 30.0º incline with static and kinetic friction coefficients of .350 and .250, respectively. After sliding 72.6 cm along the incline, the block slides across a frictionless horizontal surface and encounters a spring (k = 35.0 N/m). After compression, the spring rebounds and sends the block back up the incline. How far along the incline does the block travel before coming to rest?