Answer:
212.5
Step-by-step explanation:
10=85
212.5=25
will be the function to calculate population every half year.
Further explanation:
The given formula is:

In the given formula, x represents the amount of time in years. So, in order to convert the given function for yearly calculation of population, to find the population every half year the time will be converted into half. This means that instead of x, x/2 will be used.
So the new function will be:

Keywords: Population growth, Population growth function
Learn more about population growth at:
#LearnwithBrainly
Answer:
C≈791.68
Step-by-step explanation:
C=2πr=2·π·126≈791.68135
The side length of a cube would be the cube root of its volume, because it's length, width and height are all the same. So the answer is 13