Help me please

Courtney Company uses a periodic inventory system. Data for 2012: beginning merchandise inventory (December 31, 2011), 2,400 units at $25; purchases. 5,100 units at $30; operating expenses (excluding income taxes), $98,500; ending inventory per physical count at December 31, 2012, 1,450 units; sales price per unit, $60; and average income tax rate, 30%. Required: 1. Prepare income statements under the FIFO, LI FO. and weighted average costing methods