One way of doing this would be to look at the πr² as if it were a single term. Then we could divide both sides by πr², which leaves h = V/πr².
Number 41 is letter c I think tell me if it helps you
Answer:

Step-by-step explanation:
Given
-- initial area
-- rate
--- (years)
Required
Represent as an exponential function
An exponential function has the form:

Where

and 

Substitute values for a and b, we have:

Convert percentage to decimal


Hence, the exponential function that represents the scenario is: 
Answer:
8.1% of 899,447 = 72855.20700000001
Answer:
(-9, 1)
Step-by-step explanation:
translating UP is to increase on the y axis, so -4+5=1
translating to the LEFT is to subtract on the x axis so-2-7=-9