Answer:
C ) 2( n + 3) .
Explanation:
Given : The phrase "twice the sum of a number and three" can be written as which variable expression.
To find : Write expression .
Solution : We have given "Twice the sum of a number and three".
Let the number = n.
According to question :
Sum of the number and 3 = n + 3 .
Twice the sum of number and 3 = 2( n + 3) .
We can say phrase is 2( n + 3) .
Therefore, C ) 2( n + 3) .