You are saving money to buy a new cell phone. You begin with $20.00 and save $4.00 each week. Write an expression for the amount of money saves after w weeks.

To write an expression for the amount of money saved after w weeks, we need to consider two factors: the initial amount and the amount saved each week.

The initial amount is $20.00, which we can represent as a constant term.

The amount saved each week is $4.00, which we can represent as a coefficient multiplied by the number of weeks, w.

Therefore, the expression for the amount of money saved after w weeks is:

20 + 4w

20 + 4x