pan><span class="st"> </span><span class="fl">0.45</span> <span class="op">*</span><span class="st"> </span>(income <span class="op">-</span><span class="st"> </span><span class="fl">180e3</span>))))),</span>
<span id="cb3-14"><a href="#cb3-14"></a>       <span class="kw"><a href="https://rdrr.io/r/base/stop.html">stop</a></span>(<span class="st">"Not yet implemented."</span>))</span></code></pre></div>
<pre><code>## [1] 7797</code></pre>
<p>There were some problems, however. One is that it’s difficult to