Which representations shows a proportional linear relationship between x and y? Figure I only
Figure II and Figure III
Figure I and Figure III
Figure II only

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?

Guys i really need or i have to stay late up night

What is the frequency of the sinusoidal graph?