Which expression represents the phrase "twice the sum of a number and three"?
-2n + 3
Assuming the bullet points are not negative signs,
let's look at "the sum of a number and three."
That would obviously be n+3, where n is the 'number.'
Look at the phrase again.
"Twice the sum of a number and three,"
That would be twice of n+3
2*(n+3), which is 2(n+3)
So it is the fourth answer.