Ithink of a number multiply by two then subtract 9

The correct mathematical represention of the expression involving the product of a number and 2 then subtracting 9 is 2n - 9

Product of the number and 2 can be expressed as :

Subtracting 9 from the product ;

Therefore, the mathematical expression of the sentence is 2n - 9

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2n - 9

Step-by-step explanation:

Let the number be n.  Then "a number multiply by two then subtract 9" yields

2n - 9

idk

step-by-step explanation:

i don't know

answer: 1inch=7days  

12inch=12*7=84days

step-by-step explanation: