Answer:
Opening: Opens upwards
Axis of Symmetry: -7/2
Vertex: (-7/2, -81/4)
X - intercepts: (1, 0) and (-8, 0)
Y - intercept: (0, -8)
Step-by-step explanation:
Opening: 'a' is greater than zero
Axis of Symmetry:

Vertex:

X - intercepts:
(x-1)(x+8)
x = 1 and x = -8
Y - intercept: (0, -8)

You would divide 350m by 50m to get the number of inches between the two cities. 350/50= 7 inches. Hope this helped (I wasn't sure if this was what you were looking. I am sorry for the inconvenience).
Answer:
b
Step-by-step explanation:
The answer to this would be 5x+6>=21. Just wanted points :P