{system: i am having a bit of trouble calculating this. will you me out? you! }

Tree diagram to find the prime factors of 18

Which of the following is the rational exponent expression of 6 root f

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?