Answer:
A. 3/x = 20/100
x=15
B. 3/23 = x/100
300=23x
x=13
C. 3/20 = x/100
D. 17/x=20/100
x=85
Let me know if you have any other questions
A=15
B=13??
C=15
D=85
Explanation:
B is the only one I'm not sure
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