Sophie say $125 from Christmas and birthday gifts. She wants to purchase some shirts by using her savings. Each shirt cost $20.00. Write an expression that represents how much money she will have left.

Step-by-step explanation:

Sophie saved a total of $125 from Christmas and birthday gifts. She wants to purchase some shirts by using her savings.

Each shirt cost $20.00

Let x represent the number of shirts that she bought. The cost of x shirts will be 20 * x = $20x

The amount she has left will be her total savings - the amount spent in buying 20 shirts. This will be expressed as

Let y represent the amount that she has left. The expression becomes

y = 125 - 20x