Google reported the following data:

• Technology infrastructure costs: $8,000,000
• Office supplies: $600,000
• Sales commissions: $4,700,000
• Rent for office buildings: $3,800,000
• Depreciation of office equipment: $2,100,000
• Research grants: $2,500,000
• Travel and entertainment: $900,000
• Payroll for administrative staff: $5,200,000

Requirements:

• Determine the total operating expenses.
• Classify the amount for selling expenses.
• Identify the total general and administrative expenses.