I believe the radius of the circle would be about 18.79 (rounded).
Hope this helps ;}
It’s the last one. (X+2)2+(x+372-1/2)
Price she paid, P = $80 .
She sells the bicycle at 1/4 of the price she paid.
Let, buying price is x.
So, as given in question selling price will be x/4.
Also, selling price is given as $80 .
![\dfrac{x}{4}=80\\\\x = \$320](https://tex.z-dn.net/?f=%5Cdfrac%7Bx%7D%7B4%7D%3D80%5C%5C%5C%5Cx%20%3D%20%5C%24320)
Therefore, Steph pay $320 for the bicycle.
Hence, this is the required solution.
False only metals are good conductors