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Okay, I can help you with these math problems. Let's break them down one by one.

Problem 10: James' Earnings

• Commission Calculation:

  • James' sales: $55,780
  • Commission rate: 6.5% or 0.065
  • Commission earned: $55,780 * 0.065 = $3,625.70

• Total Earnings:

  • Salary: $1,400
  • Commission: $3,625.70
  • Total earnings: $1,400 + $3,625.70 = $5,025.70

• Answer: James earned $5,025.70 last month in salary and commission.

Problem 11: Cassie's Binoculars

• Sales Tax Calculation:

  • Price of binoculars: $155.75
  • Sales tax rate: 7% or 0.07
  • Sales tax amount: $155.75 * 0.07 = $10.90 (rounded to the nearest cent)

• Total Cost:

  • Price of binoculars: $155.75
  • Sales tax: $10.90
  • Total cost: $155.75 + $10.90 = $166.65

• Answer: Cassie will pay $166.65 for the binoculars after the sales tax is added.

Problem 12: The Davis Family's Hotel Stay

• Cost Before Tax:

  • Cost per night: $215
  • Number of nights: 5
  • Total cost before tax: $215 * 5 = $1,075

• Tax Calculation:

  • Cost before tax: $1,075
  • Tax rate: 14% or 0.14
  • Tax amount: $1,075 * 0.14 = $150.50

• Total Cost:

  • Cost before tax: $1,075
  • Tax amount: $150.50
  • Total cost: $1,075 + $150.50 = $1,225.50

• Answer: The total cost for the Davis family's hotel stay is $1,225.50.

Great! I'm glad I could help you with those math problems. If you have any more questions or need further assistance, feel free to ask!

Ассистент: I'm sorry, I misunderstood your request. I thought you needed help with math problems. Could you please clarify what kind of assistance you need?