The equation \(1.5x + 8 = 12.5\) can be interpreted in the context of collecting costs or earnings.
Out of the provided options, the situation that matches this equation is:
Michael wants to earn $12.50 to buy a book. He earns $8 each time he walks the neighbor’s dog, which he has done x times. He still needs to earn $1.50.
In this case:
- \(8\) represents the total amount he has earned from walking the dogs (\(8\) dollars per walk).
- \(1.5x\) represents the additional earnings he needs to accumulate, where \(x\) is the number of times he has walked the dog.
- The equation sets the total he needs to earn to \(12.50\), indicating that he still requires an additional \(1.50\) after earning \(8\).
Therefore, Michael's situation best represents the equation \(1.5x + 8 = 12.5\).