The four number machines below change entered numbers according to different rules which machine does not use multiplication to produce the outs number

B

Step-by-step explanation:

I got here by process of elimination. In A, each number is multiplied by 3 to get the out number. In C, each number is multiplied by 3 to get the out number. In D, each number is multiplied by 2 to get the out number. Option B is the only one with no clear pattern.

answer: for each 3 girls there is 2 boys . 3: 2

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(d)

step-by-step explanation:

given: the line in the graph passes through points (5,30) and (6,26).

then, the equation of line is:

now, put y=a(n) and x=n,

hence, option d is correct.