uster f uk ▁was ▁done ▁and ▁it ▁was ▁sent ▁to ▁be ▁mixed . ▁The ▁EP ▁was ▁released ▁on ▁March ▁ 1 3 , ▁ 2 0 1 2 . ▁It ▁deb uted ▁at ▁number ▁ 1 5 ▁on ▁the ▁Billboard ▁ 2 0 0 ▁with ▁approximately ▁ 1 7 , 0 0 0 ▁copies ▁sold ▁in ▁its ▁first ▁week ▁of ▁release . ▁It ▁deb uted ▁at ▁number ▁ 7 9 ▁on ▁the ▁Canadian ▁Albums ▁Chart . ▁As ▁of ▁March ▁ 2 5 , ▁ 2 0 1 2 , ▁Kl uster f uk ▁has ▁sold ▁ 2 0 , 0 0 0 ▁copies ▁in ▁the ▁United ▁States . ▁ ▁Track ▁listing ▁ ▁References ▁▁ ▁Category : T ech ▁N 9 ne ▁EP s ▁Category : R ap ▁rock ▁EP s ▁Category : Con cept ▁albums ▁Category : 2 0 1 2 ▁EP s ▁Category : Str ange ▁Music ▁EP s <0x0A> </s> ▁A ▁R amp ▁or ▁In cl ined ▁plane ▁is ▁a ▁simple ▁machine . ▁ ▁R amp ▁may ▁also ▁refer ▁to : ▁ ▁Science ▁ ▁R amp ▁function , ▁in ▁mathematics ▁the ▁integral ▁of ▁the ▁unit ▁step ▁function ▁ ▁Re ceptor ▁activity - mod ifying ▁protein ▁( RA MP ), ▁a ▁class ▁of ▁protein ▁ ▁( R )- 1 - am ino - 2 - m eth ox ym eth yl py r rol id ine , ▁a ▁ch iral ▁auxili ary ▁used ▁in ▁the ▁End ers ▁SA MP / RA MP ▁hyd ra zone - alk yl ation ▁reaction ▁ ▁Transport