Answer: C
Step-by-step explanation:
I am sorry if I don't correct
X is equal to 2 because thirty divide fifteen is two
Answer:
x = 64
Step-by-step explanation:
looking at the other sides, you find that each side had just been doubled.
Answer:

Step-by-step explanation:
Given

Let p represents the proportion of those who worry about identity theft;

Required
Mean of those who do not worry about identity theft
First, the proportion of those who do not worry, has to be calculated;
Represent this with q
In probability;

Make q the subject of formula

Substitute 

Convert percentage to fraction


Now, the mean can be calculated using:

Where n represents the population


(Approximated)