The answer is c. 
a. 
(2.2≠5.11) (2.2 is not equal to 5.11)
b. 
or 0.625 (0.625≠5.11) (0.625 is not equal to 5.11)
c. 
(5.11=5.11) (5.11 is equal to 5.11)
Therefore c is the answer
When solving by substation the answer would be: X= 1 , y= 5
Answer:
I think the density is 4cm.
Hope that helps you.
Step-by-step explanation:
The answer is d because I just took the test and that’s what it said was right
