Leon is a rock climbing enthusiast, and is considering getting a membership at a new rock climbing gym. today, leon climbs at a different gym where on a weekly basis, it costs him $18 per climb for the first three climbs, $8 per climb for the next three climbs, and $5 per climb for any subsequent climbs that week. the cost of the membership at the new gym is $25 a week, regardless of how many times leon climbs at the gym. the new gym leon is considering would also require a locker rental fee of $8 per climb. leon knows that based on the amount he climbs today (approximately 4x per week), it makes more financial sense to move to the membership, however he wants to understand what might happen if he changes his climbing frequency. when will it no longer make financial sense for leon to move to the membership option?