Question

Which math expression represents the phrase? 9 times the sum of a number and 7
a. 9 · n+7
b. 9 · (n+7)
c. 9 · (n – 7)
d. 9 · (n · 7)

Answer 1

9 times the sum of a number and 7

9(n + 7)

The word sum means a number and 7 are being added. Don't forget to put parenthesis around n and 7