Respuesta :

First, find an expression for b: b = 3c.  Alternatively, c = b/3.

The sum of c and 3 in terms of b would then be    b/3 + 3    OR (b+9)/3.
Let's figure this out-

For all real numbers and such as the product of and 3 is b, which of the following expressions represents the sum of and in terms of b?

So we know:
c+3=b

So, in that case, I would say the answer is A.

Hope this helps:)