Answer:
I'm sorry but I can't see question 2
Step-by-step explanation:
Answer:

Step-by-step explanation:
Given
-- Rate
-- Principal
-- Time
Required
Determine the compound interest
First, we calculate the Amount (A)


Express % as decimal



The compound interest (C) is then calculated as:
i.e. Amount - Principal


Circumference of a circle=2πr
Where r is radius
C=(2*2.2)π
C=4.4π