Question

3 times the sum of b and f, can also be written as: A. 3 + b + f B. 3bf C. 3(b + f) D. 3b + f

Answer 1

Choice 'C' is the way to write that quantity.

-- 'b' and 'f' are two numbers.

-- Their sum is  (b + f) .

-- Three times that sum is  3(b + f) .