If it takes 500ml to fill up a liter of soda, how many ml will it take to fill up
5 liters?

7x+8y=-18, 4x-9y=-3 solve the system of equations

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?

Joanie watched 1 out of three of a movie in the morning