Answer:
It's proportional
Step-by-step explanation:
10-3=7 7/1 = 7
17 - 3= 14 1 4/2 = 7
31 - 3 = 28 28/4 = 7
38 -3 = 35 35/5 = 7
73 - 3 = 70 70/10 = 7
No
No, it is not because the 3 dollars is a steady price. A expression will look like 7n+3. Since the 3 dollars is a steady price you can never have a unit rate.
Answer: a = 2168 miles
b= $3360.40
Hope this helps!
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