Answer:
[tex]\text{ Total bill=\$20.31}[/tex]Step by step explanation:
As a first step, we are going to calculate the total price of the purchase:
[tex]\begin{gathered} \text{Total}=1.29+7.99+3\cdot0.69+1.09+2.49+2\cdot0.99+1.99+0.44 \\ \text{Total}=19.34 \end{gathered}[/tex]To find the 5% sales tax, we can use the definition of percent:
[tex]\begin{gathered} \text{Total}\cdot\frac{percent}{100}=\text{equivalent number to the percent} \\ 19.34\cdot\frac{5}{100}=0.967 \end{gathered}[/tex]Then, the total bill with the 5% sales tax would be:
[tex]\begin{gathered} \text{ Total bill=\$19.34+\$0.967} \\ \text{ Total bill=\$20.31} \end{gathered}[/tex]