Tony ran laps around a track to raise money for a hospital. Tony raised $15 plus $1.50 per lap that he ran. He raised a total of $255.

Let x represent the number of laps Tony ran.

What expression completes the equation to determine the total number of laps Tony ran?

How many laps did Tony run?

Enter your answers in the boxes.

Expression: 1.5x + 15

To find the number of laps Tony ran, we need to solve the equation:
1.5x + 15 = 255

Subtracting 15 from both sides of the equation:
1.5x = 240

Dividing both sides of the equation by 1.5:
x = 160

Tony ran 160 laps.