Production estimates for July are as follows:Estimated inventory (units), July 1 8,500Desired inventory (units), July 31 10,500Expected sales volume (units), July 76,000For each unit produced, the direct materials requirements are as follows:Direct material A ($5 per lb.) 3 lbs.Direct material B ($18 per lb.) 1/2 lb.The number of pounds of materials A and B required for July production is: