Answer:
Step-by-step explanation:
given that a bacteria population starts with 80 bacteria and doubles every four hours,
The function representing the number of bacteria after t hours
= 
We are to find the inverse of the function
i.e. we must make t = g(n) where g is a function of n.
Take log on both sides.

this is the inverse function.
The answer is C. Hope this helps :) good luck!
The temperature was -12 degrees
Answer:
The new area is 1800feet^2
Step-by-step explanation:
Step one:
Given data
The length and width or a rectangular courtyard is 40 feet and 30 feet
we can calculate the area of the courtyard as
Area= 40*30
Area= 1200 feet^2
when the extra 15 feet is added to the width
the new width is= 30+15= 45feet
The new area is
Area= 40*45
Area= 1800 feet^2
in all the area will increase by 1800-1200= 600feet