Answer:
As per the statement: Three times the sum of twice a number and 3.
Let the number be x;
"Twice a number" means 2x
"Sum of twice a number and 3" means 2x + 3
and
"Three times the sum of twice a number and 3" means [tex]3 \times (2x+3)[/tex]
Then, as per the statement:
Then, the given phrase which represents the variable expression is, [tex]3(2x+3)[/tex]