Ais a subset of a line made up of two endpoints and all the points between them

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?

The sum of two numbers is 12 and their difference is 18 what are the two numbers

Write a fraction less than 1, which has a denominator of 6 and is greater than 3/4 plz answer !