Question

?/21 = 4/7
a) 21
b)47
c)12​

Answer 1

Answer:

hey mate

Step-by-step explanation:

x/21=4/7

x=4/7×21

x = 4×3

X=12

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Answer 2

Answer:

?/12=4/7

?=4×12/7

?=4×3

?=12.

Hence, c is the right answer.