3.124 * 10^-4
since your decimal is coming forward you need the exponent to be negative
{Answer:
3893 residents.
Step-by-step explanation:
Equation for population growth:
The equation for the size of a population, considering that it doubles every n years, is given by:

In which A(0) is the initial population.
The current population of a small town is 2463 people. It is believed that town's population is tripling every 12 years.
This means that
. So


Approximate the population of the town 5 years from now.
This is A(5). So


Rounding to the nearest whole number, 3893 residents.
804 miles/12 hours = 67 miles
Which means that Ivan drove 67 miles per hour
67 miles*9 hours = 603 miles
Which means that in 9 hours Ivan can drive 603 miles if he drives at a constant speed of 67 miles per hour.
2600 divided by 45 equals 57.7 repeating or rounding up 58