We can create a formula first.
X will be the unknown number
840= 357+x
-357 -357
483 = x
Hope this helps
5 1/4 - 3 1/9
5 9/36 - 3 4/36
2 5/36 is final answer
Answer: If this isnt wrong then I probably forgot how to do this... You plug in 10 with 
10^2. so then you'll get 100 time pi and youll get 314.159265.
The variable being tested in an experiment is the (b) response variable
<h3>How to determine the variable name?</h3>
The statement is given as:
<em>what is the variable being tested in an experiment?</em>
As a general rule, the variable being tested in an experiment is referred to as the dependent variable
The dependent variable is represented with y and it is also known as the response variable
Hence, the variable being tested in an experiment is the (b) response variable
Read more about response variable at
brainly.com/question/14662435
#SPJ1
