Answer:
circumference is 81.68
area is 530.93
Step-by-step explanation:
C=2πr=2·π·13≈81.68141
A=πr2=π·132≈530.92916
The radius is 7 what it is telling you is that you already did the square 4^2*3.14=49 pi.
Answer: 8
Step-by-step explanation:
Given
Mean of the numbers is 8
If the ratio is 1:1:2:2:3:3
Suppose the numbers are 
Write the mean of the numbers

So, the numbers are 
As the total numbers are even, median is the sum of the middle values

Answer:
-1
Explanation:
X - 9 = -10
+9 +9
——————
X = -1
Answer:
The bank charged 56 dollars in interest