1.) My new speakers were $\$ 154.99$ but I also had to pay the $6 \%$ tax, what did I pay for my new speakers?

Step 1 ：Calculate the tax amount: \(154.99 \times 0.06 = 9.2994\)

Step 2 ：Add the tax amount to the initial price: \(154.99 + 9.2994 = 164.2894\)

Step 3 ：Round the total cost to two decimal places: \(164.29\)

Step 4 ：\(\boxed{164.29}\)