1. The problem asks us to find the number of pictures taken per second for each camera and then determine which camera is the fastest. 2. The formula to find pictures per second is: $$\text{Pictures per second} = \frac{\text{Number of pictures}}{\text{Time in seconds}}$$ 3. Calculate for the first camera: $$\frac{35}{5} = 7$$ So, the first camera takes 7 pictures per second. 4. Calculate for the second camera: $$\frac{72}{9} = 8$$ So, the second camera takes 8 pictures per second. 5. Calculate for the third camera: $$\frac{42}{7} = 6$$ So, the third camera takes 6 pictures per second. 6. Comparing the three: - First camera: 7 pictures/second - Second camera: 8 pictures/second - Third camera: 6 pictures/second 7. The second camera takes the most pictures per second, so it is the fastest. **Final answers:** Number of pictures taken per second for the first camera: 7 Number of pictures taken per second for the second camera: 8 Number of pictures taken per second for the third camera: 6 The camera that takes pictures the fastest is the **Second camera**.