What is 6.5 divided by 2.6 Equivalent Expression

What is the value of x in the diagram below?

What is the name used to describe a graph where for some value of x, there exists 2 or more different values of y?

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.