Question 143350
Nan can rent a van for either $50 per day with unlimited mileage or $35 per day with 75 free miles and an extra charge of .20 for each mile over 75. For what numbers of miles traveled would the unlimited mileage plan save Nan money? 
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Plan A:
A(x) = 50
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Plan B:
B(x) = 35+(x-75)0.20
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INEQUALITY
50 < 35 + (x-75)0.20
15 < (x-75)0.20
x-75 > 75
x > 150 miles
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You are correct.
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Cheers,
Stan H.