ANSWERS:
Between 7 & 8: √50, √62
Between 8 & 9: √70, √74
Between 9 & 10: √90, √83
Hope it helps u!
Answer:
340 children, 210 adults.
Step-by-step explanation:

Answer:
The first one, since that is the only one showing in the screen,
and that is actually correct, since there are no intersecting points.
Answer:
Step-by-step explanation:
x² + 4x - 1 - x =x² + 4x -x - 1 { bring the like terms together and add}
= x² + 3x - 1