The answer is 20 because you plug in x=2 into f(x)

You would need to know the dimensions of the pyramid and wether it was triangle or square bottomed
Hello!
First you have to find the total of the items he bought
382 + 12 + 6.14 = 400.14
Then you apply the tax rate
400.14 * 1.0825 = 433.15155
We round this to 433.15
The answer is $433.15
Hope this helps!