Answer:
the answer is b
Step-by-step explanation:
The roots on the graph is basically the x-intercepts So if you see points that are on the x-axis then those are the roots.
Ex
x=0, x=-2 x=3 etc. <span />
2x+x=36
Kim's Sister age
2x+x=36 Add "x and 2x"
3x=36 Divide both sides by 3
÷3 ÷3
x=12
Kim's sister is 12 years old
Soo....
Multiply that by two to get Kim's age
12•2=24 Kim is 24 years old.