Dr. Smith charges $100 for a surgery, $5 per hour, and $50 for medication. What is the charge if a dog stays for 5.5 hours?

To determine the total charge for the dog's stay, you need to calculate the costs associated with the surgery, the hourly rate for the duration of the stay, and the medication fee. Here’s how it breaks down:

1. The cost for the surgery is a flat fee of $100.
2. The hourly charge is $5, and since the dog stayed for 5.5 hours, you would multiply the hourly rate by the number of hours: $5 x 5.5 = $27.50.

3. The medication fee is again a fixed charge of $50.

Now, add these amounts together:

• Surgery: $100
• Hourly charge for 5.5 hours: $27.50
• Medication: $50

When you sum these amounts: $100 (surgery) + $27.50 (hourly) + $50 (medication) = $177.50.

Therefore, the total charge for the dog's stay is $177.50, making this the correct answer.