Answer:
Step-by-step explanation:
Given
Population changes exponentially

------1

-----2
divide 1 & 2 we get


Substitute
in 1 we get

Thus 
Answer:
63.59
Step-by-step explanation:
If the perimeter is 32.13, that means it is equal to
2r + 2πr/4 = 32.13
Solving this for r we get 9
Now, we can find the area, which is 3.14*r^2 / 4. Assuming pi to be 3.14 again, we get 63.585. Rounding this to the nearest hundredth, we get 63.59
Answer:
1 pair is $20. 3 pairs is $60. 4 pairs is $80. 5 pairs is $100. Please don't delete my answer, I am only trying to help.
The basic dimensions of any triangle are its area, base, and height.
They're related by the area equation; the area is half of the base times the height, or:

We know the area and the height, so the missing dimension has to be the base. Let's set up an equation by substituting the values the problem gives into the area equation.

Can you solve this equation for

?