Plz help will mark brainliest due in 10 min

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?

Idon’t understand! use slope intercept form to solve: through: (2,5) slope= undefined

Acarton of juice contains 64 ounces miss wilson bought six cartons of juice how many ounces of juice did she buy