QUESTION :-
what is the value of x to the nearest whole number?
ANSWER :-

SO
the nearest whole number-->
20.7 --> approximately --> 21 units
Answer:
The margin of error (E) 
Step-by-step explanation:
Given,
mean 
standard deviation 
sample size 

Critical value


Critical value 


The margin of error (E) 


Hence, The margin of error (E) 
Complete question is attached in below.
Answer:
there is just dots. cant join anything.
Answer: 20 cm
Step-by-step explanation: Isolate the variable by dividing each side by factors that don't contain a variable.