The regular price of a smart phone is represented by x. When an upgraded phone is released, the new price is 25% more than the older model. The upgraded phone's price can be represented by which expression?
The price of the upgraded phone, which is 25% more than the older model can be represented by:
x + 0.25x = 1.25x
Therefore, the expression representing the price of the upgraded phone is 1.25x.