Instructions: Luke buys and sells stereo equipment. At the beginning of the year 2017, Luke had 8 stereos in inventory at a cost of $900 a piece. Journalize the following events under (a) perpetual method and (b) periodic method, respectively. (1) On Jan. 31, 2017, Luke purchases 100 stereos at $900 cash per stereo. (2) On Feb. 28, 2017, Luke sells 95 stereos for $1,200 cash per stereo. (3) On Mar. 31, 2017 (the fiscal quarter end), Luke counts inventory and finds he has 13 stereos left