x = 112
This is because
<span>4/7x = 64 </span>
<span>7/4 x 4/7 = 64/1 x 7/4 </span>
<span>1x= 448/4 </span>
<span>
x = 112 </span>
Elena should put a point where the two circles intersect and draw line segments connecting that point to points A and B to finish her triangle.
I believe it's 12 because 5*16=80. So, then you would subtract 4 from 16 and gat 12.
