Question

Which would the phrase "twice the sum of a number and three" look

like as a variable expression?
Question 9 options:

a. 2n+3


b. 2(n+3)


c. 2+ (2n+3)


d. 2(2n-3)

Answer 1

"twice the sum" means 2 times the sum of some numbers
"a number and 3" means n+3 if we rpresent the number as n

so
2 times (n+3)
2(n+3)

B is answer