The $315 cost of the couch after tax, gives the cost before tax, <em>C</em>, as the following equation;

<h3>How can the cost before tax be expressed?</h3>
The cost of the couch with tax = $315
Let, <em>t</em>, represent the tax rate, and let <em>C</em>, represent the cost before tax, we have;
315 = C + C × t
Which gives;
- The cost of the couch before tax, <em>C </em>= 315/(1 + t)
Mathematically, we have the following equation;

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Answer:
1/3
Step-by-step explanation:
You can answer this as
9/27=1/3
and
3/9=1/3
and so 1/3 is the the constant proportionality for both figures
Hope You Understand :)
37 times 720 divided by 20 is 36 then you need gas to run the 5 other miles.
How is this 1st grade!? And also I think the answer is 3,000
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Answer:</h2>
<h3>No solution for X€®</h3><h2>
Step-by-step explanation:</h2>
<h2>HOPE IT HELPS OR NOT SURE !!!!!!</h2>