Answer:
It should be option a 4.5
Answer:
Yes, they are equivalent.
Attached solution and work.
Answer:
32 mi
Step-by-step explanation:
Solve using proportions.

Find the scale factor (how to get from left to right)
To get from left numerator to right numerator, multiply by 4.
(1/2) X 4 = 2
The scale factor is 4.
Multiply the left denominator by the scale factor to get "y".
8 mi X 4 = 32 mi
Therefore 2 inches represent 32 miles.