Answer:
Option 3
The rate of change is -5%
Step-by-step explanation:
Given : An exponential function for compounding interest, 
To find : What is the rate of change?
Solution :
The general form of an exponential function is:

Where, a is the initial amount,
(1+r) is the rate of change,
r is the growth or decay factor
We have given, 
Rate of change is



Convert to percent,

Therefore, Option 3 is correct.
Answer:
Step-by-step explanation:
i need this one too helpp
40min is 1/3
implies 20min is 1/6
60min is 1/3+1/6=3/6=1/2
Answer:
Mean = £1.8 million
Step-by-step explanation:
The MEAN is the sum of all the numbers divided by the number of numbers.
- <u>There are 5 numbers in total</u>
- <u>The sum is
million</u>
Hence the mean is
million
Your answer is 1,024. Hope this helps!
Work:
-4 x 8 = -32
-32 x -32 = 1,024