The total cost of a new calculator is $81.05. This price includes a 10% discount followed by a 6.5% sales tax. What was the original price of the calculator not including the tax or the discount? pls answer fast

Respuesta :

Answer:

[tex]\$68.20[/tex]

Step-by-step explanation:

[tex]81.05 \times (1-10\%) \times (1-6.5\%)[/tex]

[tex]81.05\:\times \left(1-\frac{10}{100}\right)\:\times \left(1-\frac{6.5}{100}\right)[/tex]

[tex]81.05\:\times \left(0.9)\:\times \left(0.935)[/tex]

[tex]=68.203575[/tex]