Answer:
I think it's B.
Step-by-step explanation:
Because the equation is 1 - 0.144/24 should represent the amount of emails to be answered after one day.
If you examine the numbers in the question above very well, you will discover that thy have a distinctive pattern. The pattern is this, you add 3 to the first number and then you multiply the next by 2. Lets go over the numbers now:
6 + 3 = 9
9 * 2 = 18
18 + 3 = 21
21 * 2 = 42
42 + 3 = 45
45 * 2 = 90
90 + 3 = 93
93 * 2 = 186, etc.
Thus, the next number after 45 is 90.
Answer:

Step-by-step explanation:
In this problem we have a exponential function of the form

where
x is the time in hours
y is the numbers of bacteria
a is the initial value
b is the base
r is the rate of growth
b=(1+r)
we have that

For x=8, y=3,300
substitute in the exponential function

solve for b

![b=\sqrt[8]{1.1}](https://tex.z-dn.net/?f=b%3D%5Csqrt%5B8%5D%7B1.1%7D)

Find the value of r

The equation is equal to

For x=12 hours
substitute the value of x in the equation


Answer:
I do not know what the rest of the problem is so I can not answer
Let x equal to -4 and substitute into the original function f(x)
f(-4)=56