GAUSS7 2023 Problem 10

The grocery receipt shows the cost of three items before tax is added. When a 5 \% tax is added to the cost of the items, what is the total cost for the three items?

\begin{array}{|lr|} \hline \text { Sponge } & \$ 4.20 \\ \text { Shampoo } & \$ 7.60 \\ \text { Soap } & \$ 3.20 \\ \hline \end{array}

Answer Choices
A. \$ 15.16
B. \$ 15.08
C. \$ 15.22
D. \$ 15.75
E. \$ 15.38