<u>Answer-</u>
<em>The area of QRS is </em><em>238.7</em><em> sq units.</em>
<u>Solution-</u>
According to properties of supplementary angles,

So,

As the sum of measurement of all the angles in a triangle is 180, so



Then the area of the triangle will be,



The answer would be 150 as each ten bar is si worth 10 and 10x15=150.
C is the right answer because the period should be pi/(1/3), so the answer is 3pi
Answer:
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Step-by-step explanation:
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The amount of money, b, is $140.