787.50
You multiply 250 by .05 to get 12.50, then you add it to 250 to get 262.50, and multiply it by 3 to get 787.50
This to numbers are equal
Answer: OPTION C
Given the functions shown in the figure attached, you have that f(x)*g(x), means that you must multiply both functions.
Therefore, you have:

Now, you must apply the distributive property, therefore, you obtain:

As you can see, the answer is the Option C.