To calculate how much Bailey will spend altogether on her lunch, we need to add up the cost of the meal, the delivery fee, and the tip for the driver. However, the total cost of the meal is not provided in your question.
Assuming the total cost of the meal is \( x \), the total amount spent would be calculated as:
\[ \text{Total Amount} = x + \text{Delivery Fee} + \text{Tip} \]
Substituting the known values:
\[ \text{Total Amount} = x + 3.50 + 4.00 \]
\[ \text{Total Amount} = x + 7.50 \]
With the information provided, I cannot determine the total amount Bailey will spend because the cost of her meal ( \( x \) ) is not given. Please provide the cost of the meal to calculate the total amount correctly.