Answer:
13.
Step-by-step explanation:
x+x+5=21
2x+5=21
2x=16
x=8
Jesse, to answer this, we need to see the graph. I'd help if I could! You can message me if you post it! :D
Answer:
see explanation
Step-by-step explanation:
The roots are the points on the x- axis where the graph crosses
The roots are (- 3, 0 ) or (1, 0 )
The turning point is at (- 1, - 4 ) ← where the graph turns
Let's first find out their factors.
90's factors are :

190's factors are :

The common factors of 90 and 190 are :
1,2,5 and 10.
The greatest one among these is, 10. So the greatest factor of 90 and 190 is 10.