Solve for x in the diagram in the pic.. hurry!

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.

Determine if the equation defines y as a function of x: 2xy = 1. yes o no

Which graph represents the given linear function 4x+2y=3