Lauren H. answered 01/11/19
Tutor
4.8
(24)
Experienced High School Chemistry Teacher
40/60 = x/12
x = 8
8 + 12 = 20
Arlena W.
asked 01/10/19
Lauren H. answered 01/11/19
Experienced High School Chemistry Teacher
40/60 = x/12
x = 8
8 + 12 = 20
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