Rachael has 80 hairclips. $$\frac{7}{10}$$ of them are red. $$\frac{1}{5}$$ of them are pink and the rest are yellow. <hr> How many yellow hairclips does she have? <br> $$\frac{A}{B}$$ <hr>A: <input min="0" type="number" class="lineinput" placeholder="?" /> B:<input min="0" type="number" class="lineinput" placeholder="?" />