Given the following options;
- 5% off before taxes
- getting a rebate of $20 after taxes
- getting a discount of $18 before tax.
Let us evaluate the final cost for each of the options, given that the couch costs $379.00 and sales tax 8%.
1. 5% off before taxes;
[tex]\begin{gathered} C_1=379\times0.95\times1.08 \\ C_1=\text{ \$388.85} \end{gathered}[/tex]
2. getting a rebate of $20 after taxes;
[tex]\begin{gathered} C_2=379\times1.08-20 \\ C_2=409.32-20 \\ C_2=\text{ \$}389.32 \end{gathered}[/tex]
3. getting a discount of $18 before tax.;
[tex]\begin{gathered} C_3=(379-18)\times1.08 \\ C_3=\text{ \$389.88} \end{gathered}[/tex]
From the three options, the option that gave the least final cost is option 1.
Therefore, the best deal is;
The coupon for 5% off before taxes