Step-by-step explanation:

3:1 =300%
2:3:5 =50%
1:4 =25%
1:2:5 =62.5%
Answer:
option c
Step-by-step explanation:
option c is right..
Answer:
x = 0
Step-by-step explanation:
You know the answer to this because you know the identity element for addition is 0: 5 + 0 = 5.
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Or, you can make use of the addition property of equality and add -5 to both sides of the equation:
5 - 5 + x = 5 - 5
x = 0 . . . . . . . . . . simplify