Valentina purchased 3 shirts for $15.99 each, 2 pairs of pants for $25.00 each, and a pair of shoes for $39.99. The sales tax is 5%. How much did she pay?(1 point)

To calculate Valentina's total cost including tax, we need to determine the total cost of her purchases before tax and then add the sales tax.

1. Calculate the total cost of the shirts: \[ \text{Total cost of shirts} = 3 \times 15.99 = 47.97 \]

2. Calculate the total cost of the pants: \[ \text{Total cost of pants} = 2 \times 25.00 = 50.00 \]

3. Calculate the total cost of the shoes: \[ \text{Total cost of shoes} = 39.99 \]

4. Calculate the total cost before tax: \[ \text{Total cost before tax} = 47.97 + 50.00 + 39.99 = 137.96 \]

5. Calculate the sales tax: \[ \text{Sales tax} = 0.05 \times 137.96 = 6.898 \]

6. Calculate the total cost including tax: \[ \text{Total cost including tax} = 137.96 + 6.898 \approx 144.86 \]

Therefore, the total amount Valentina paid is $144.86.