Final answer:
The exponential equation for 1129 doubling every 7 hours is

Step-by-step explanation:
To find the exponential equation for 1129 doubling every 7 hours, we can use the formula

Where:
- A is the final amount
- P is the initial amount
- t is the time in hours
- d is the doubling time in hours
Plugging in the values, we have A =

This equation represents the population growing exponentially, with the population doubling every 7 hours.