Answer:
Missing information:
"The ending raw materials inventory equals 10% of the following month’s raw materials production needs. Each unit of finished goods requires 4 pounds of raw materials. The raw materials cost $2.50 per pound."
raw materials needs for July:
Units produced 16,000 x 4 = 64,000 pounds
ending inventory (18,000 x 4) x 10% = 7,200 pounds
- beginning inventory (16,000 x 4) x 10% = 6,400 pounds
total raw materials purchases 64,800 pounds
cost of raw materials for July = 64,800 x $2.50 = $162,000