Sorry, I'm no help because I have no idea how to do those!
Answer:
A function can have many x values for a given y value and still be a function but it cannot have many y values for a given x value. You can easily test this by graphing the equation and doing the vertical line test by seeing if a vertical line will intersect the graph only once at all x values, if it passes it is a function. In short what you have here is a function
Step-by-step explanation:
Answer:
She can use 4GB of data
You keep on adding five dollars on top of 50 until you reach 70.
