Identify the 2 tables that represent quadratic equations

Two sides of a triangle mesure 20cm and 30cm. what is the measure of the third side

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?

For each proportion find the unknown number x 1/5/8=×/15