Answer:
181.818181...Miles
Explanation:
50 = 30 + 11X
X = 181.81818181...
If you multiply 11 by 181.81 repeting you will get 20 and 30 + 20 = 50
So You would have to go 181.81 repeating miles for it to be equal
If you are rounding up it would be 182 miles to justify choosing plan B