Answer:
x= Price of jeans x 1.07
Step-by-step explanation:
The sign needed to be added is x.
<em>Answer:</em>
<em>The unknown angles are 45 and 63</em>
<em>Step-by-step explanation:</em>
<em>5x + 7x + 72 = 180 (angle sum property)</em>
<em>12x + 72 = 180</em>
<em>12x = 180 - 72</em>
<em>12x = 108</em>
<em>x = 108/12</em>
<em>x = 9 </em>
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<em>Therefore, 5x = 5*9 = 45</em>
<em> 7x = 7*9 = 63</em>