This is the answer I came to by hand. Sorry for the handwriting.
They could have the same measurements in base and height but they don't have to be the same. Lets take an example. Let's say the area was 80 units squared. The base could be 20 and the height could be 4 units. However, it could also have a base of 40 and a height of 2 unites. The base and height could be different, but the area can stay the same in certain situations
We are given the following data:
Year
Estimated Population
0 100
1 79
2 62
3 49
4 39
Just by looking at the data we can see that the
relationship of year and estimated population is not linear. The decrease in
the population does not follow a linear path, that is:
79 – 100 is not equal to 62 – 79
-21 is not equal to -17
Therefore, the relationship must be exponential. Let us
find the common ratio by dividing the population in year 1 and year 0:
common ratio, r = 79 / 100 = 0.79
This means that the population decreases by 21% every
year.
So the model for this data can be written as:
yn = y0 * r^n
Where,
yn = is the population after n years
y0 = initial population
r = growth rate = decreasing
n = number of years
65 because 4c +2 = 22 and then 4c+ 1= 21 then plus ten and plus 12