can someone help me

Courtney Company uses a periodic inventory system. The following data were available: beginning inventory. 1,400 units at $25: purchases, 5,600 units at $30; operating expenses (excluding income taxes), $99,500; ending inventory per physical count at December 31, 1,200 units; sales price per unit. $70; and average income tax rate. 30%. Required: Prepare income statements under the FIFO, LIFO, and weighted average costing methods