How can you use two-step equations to represent and solve real-world problems?

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?

Can you me find the slope! (30 points)

Graph a point. start at your origin, move left 10 units, and then move up three units which ordered pair is the point you graphed