What is 78 dollars plus tax?

Answer 1

That depends on the tax amount

The answer (depending on the tax would be)

=78*(1+*tax as a decimal*)

Ie. Where I like the tax is 13%, that means as a decimal it is 0.13

=78*(1+0.13)

=78*1.13

=88.14

So that would be $88.14 where I live