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Question

# Find the amount. $$\begin{matrix}\mathrm{\scriptstyle{Product \ description}} & \mathrm{\scriptstyle{Unit \ price}} & \mathrm{\scriptstyle{Number}} & \mathrm{\scriptstyle{Subtotal}} & \mathrm{\scriptstyle{Tax (8\text{\\%})}} & \mathrm{\scriptstyle{Total}}\\\mathrm{\scriptstyle{Notebooks \ (2 \ pack)}} & \mathrm{1.99} & \text{2} & \mathrm{3.98}\\\end{matrix}$$

Solution

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Write the tax rate as decimal, ie $8\%=0.08$

\begin{align*} \text{Tax}&=\text{Subtotal} \times\text{Tax}\\ \text{Tax}&=\3.98\times0.08=\0.32\\ \end{align*}

Now, add the subtotal and the tax to find the total price.

$\text{Total}=\3.98+\0.32=\4.3$

Total is $\4.3$

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