Which of the following equations shows "twice a number is eighteen? "

I don't see the answer choices, but 2 equations you could use to get eighteen would be:

9 × 2 = 18

     OR

9 + 9 = 18

See? Twice a number is eighteen. You can use any of my equations to get eighteen

↑   ↑   ↑ Hope this helps! :D

Good evening ,

Step-by-step explanation:

the approximate growth of the plant, in centimeters per hour:

91/24 = 91÷24 = 3.791666666667

the approximate growth of the plant, in inches per hour:

3.791666666667×0,394 = 1.493916666667 .

:)