Margaret earns $15.25 an hour working at a record store and is paid every week. She takes $50 from each paycheck and puts it in her savings account. She spends the remainder of her paycheck. Part A: Identify the variables y, m, z, and b in the given situation. Explain each variable.

Part B: Write the linear equation that represents the given situation.

Part C: Explain how the equation from Part B can be used in relation to the given situation.