Your answer would be 7y^(3)+32y^(2)+9
<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,



That is permuations
that would be 10! or 10*9*8*7*6*5*4*3*2*1=3628800 ways
I think it’s 140 I hope this helps
Answer:
10.
Divide b into thirds, and then add together 2 of those thirds.
15/3 = 5
5x2 is 10.
Sorry if that doesn't make sense but it's how I do it in my head lol.