Answer:
a is proportional to b
a=kb
k is proportionality constant
k =a/b =3/12 =1/4
k=1/4 = a/b=a/18
1/4=a/18
a=18/4 =9/2 =4.5 answer
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Step-by-step explanation:
Answer:
C,
Step-by-step explanation:
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Answer:
19900kk
Step-by-step explanation:
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