What is the value of x

The table shows a pattern of exponents. what is the pattern as the exponents decrease?

Adding and subtracting matricesfind the value of each variable. x = and y = would

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?