2u-2u-4uequals 2u-2u+3+u+32
Looks good for high school math make sure the teacher sees you're work clearly and know what the numbers are overall you should be good
So, here we have an exponential function.
Remember that an exponential function has the form:

Where a represents an initial amount, and r is the rate of this amount to change. (Increase, or decrease).
So, given that the population of City A in 2000 was 40 thousand people and the population increased by 13% each year, we can say that

So,

For city B:

But something different happens with city C. This is not an exponential function, this is a linear function.
So,

Step-by-step explanation:
where is the question huh ?