Answer: 1
Step-by-step explanation: Because it is
Answer:
The area of each section of the circle is 
Step-by-step explanation:
we know that
The area of a circle is equal to

we have

substitute

To find the area of each section divide the complete area of the circle by 
so

Answer:
$5.75
Step-by-step explanation:
Find the difference between the weeks as this will give you the difference hence the amount deposited each week
0->1
is 12.00->17.75
diffrence is $5.75
1->2
is 17.75->23.50
diffrence is $5.75
the amount saved each week is $5.75