A Statistic.
Since they want to know how their magazine are, they are gonna make a survey. In the survey, the people are statistics to see how well their magazines are. With that, they can decide to change their subjects or whatever it is. Hope this helps!
Answer: 2+7x
Step-by-step explanation:
First you have to do PEMDAS. Then you get this answer.
Area = length x width
21 = length x 5
length = 21/5 = 4.2
The length is inversely proportional to the width because as the length increases the width reduces and vice-versa
Answer:
B, C, D
Step-by-step explanation:
Given expression 
Note that
Use distributive property:
Thus, choice B is true.
Rewrite given expression in following way:
Thus, choice C is true.
Rewrite given expression in following way:
Thus, choice D is true.
Then a will be equal to c
