The answer is 26x squared/9 plus 13x minus four.
The Answer is b. Hope that helps
First you draw threes cookies, then you give a cookie to each child, then with the last cookie you split it in half and they each have 1 1/2 cookie.
A+3=B
17+3=B=20
B equals 20 when A equals 17
Angle 2 and 4 are vertical angles(opposite) thus they are congruent... set
9x+4=14+8x
9x-8x=14-4
X=10
Now substitute x back into angle 4 and solve