Answer:
I got the answer: 76.430
Step-by-step explaination:
So first, what I did is how Sam even got 53.50
<em>I came up with a expression like this-</em><u><em> Let n express the amount of money before tax!</em></u>
<em>(n) times 0.7 would equal 53.50</em>
All I did now, was just reverse the whole thing.
<em>53.50 divided by 0.7 would equal (n)</em>
When I did the question above, I got 76.4285714286, though if you round it to the nearest hundredth. Which was<em> 76.430</em>
Let me know, If you have more questions about how I got my answer.