decide whether there is enough information to prove that m || n. if so, state the theroem you would use.

Can somebody me out with this question

Cassie is traveling 675 miles today to visit her brother and his family. so far, she has stopped for gas three times. at the first stop, she put in 7.1 gallons of gas and paid $23.79. at her second stop, she put in 5.8 gallons of gas and paid $19.08. and, at the third stop, 6.6 gallons and paid $20.39. at which stop did casey pay the most for gas?

What could explain what happened when the time was equal to 120 minutes