Answer:
Divide the weight of the book 2.5 lb by the 2.2 lb/kg
Step-by-step explanation:
2.5 ÷ 2.2
<h3>
♫ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ♫</h3>
➷ Standard deviation = 
Substitute the values in:
= 8.1975...
This can be rounded to give an approximate answer of 8.2
The answer is option A.
<h3><u>
✽</u></h3>
➶ Hope This Helps You!
➶ Good Luck (:
➶ Have A Great Day ^-^
↬ ʜᴀɴɴᴀʜ ♡
A=pi • r^2 , 3.2^2= 10.24 , 10.24 • 3.14= 32.1536 and then ur answer when you simplify is 32